DU A Unit Admission Question Solution 2013-2014

DU A Unit Admission Question Solution 2013-2014

āĻ¨āĻŋāĻšā§‡āĻ° āĻ­āĻŋāĻĄāĻŋāĻ“āĻ¤ā§‡ āĻĻā§‡āĻ–ā§‡ āĻ¨āĻžāĻ“ āĻŦāĻŋāĻ¸ā§āĻ¤āĻžāĻ°āĻŋāĻ¤:

āĻ•ā§‹āĻ°ā§āĻ¸āĻŸāĻŋ āĻ•āĻŋāĻ¨āĻ¤ā§‡ āĻĒāĻžāĻļā§‡āĻ° āĻŦāĻžāĻŸāĻ¨āĻŸāĻŋ āĻ•ā§āĻ˛āĻŋāĻ• āĻ•āĻ°:   

 

āĻ•ā§‹āĻ°ā§āĻ¸ā§‡āĻ° āĻĄā§‡āĻŽā§‹ āĻ­āĻŋāĻĄāĻŋāĻ“(āĻāĻ­āĻžāĻŦā§‡ āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŦāĻŋāĻœā§āĻžāĻžāĻ¨+āĻ°āĻ¸āĻžā§ŸāĻ¨+āĻ‰āĻšā§āĻšāĻ¤āĻ°āĻ—āĻŖāĻŋāĻ¤ āĻāĻ° āĻŦāĻŋāĻ—āĻ¤ āĻŦāĻŋāĻļ āĻŦāĻ›āĻ°ā§‡āĻ° āĻ¸āĻ•āĻ˛ āĻĒā§āĻ°āĻļā§āĻ¨ā§‡āĻ° āĻ¸āĻŽāĻžāĻ§āĻžāĻ¨ āĻĨāĻžāĻ•āĻŦā§‡ āĻ­āĻŋāĻĄāĻŋāĻ“āĻ¤ā§‡)

 

āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŦāĻŋāĻœā§āĻžāĻžāĻ¨

  1. \(\frac{d^{2} x}{d t^{2}}+25 x=0\) āĻ¸āĻŽā§€āĻ•āĻ°āĻŖāĻŸāĻŋ āĻāĻ•āĻŸāĻŋ āĻ¸āĻ°āĻ˛ āĻ›āĻ¨ā§āĻĻāĻŋāĻ¤ āĻ¸ā§āĻĒāĻ¨ā§āĻĻāĻ¨ āĻŦāĻ°ā§āĻŖāĻ¨āĻž āĻ•āĻ°ā§‡āĨ¤ āĻāĻ‡ āĻ¸ā§āĻĒāĻ¨ā§āĻĻāĻ¨ā§‡āĻ° āĻ•ā§ŒāĻŖāĻŋāĻ• āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• āĻ•āĻ¤?
    1. \(100 \mathrm{~s}^{-1}\)
    2. \(25 \mathrm{~s}^{-1}\)
    3. \(10 \mathrm{~s}^{-1}\)
    4. \(5 \mathrm{~s}^{-1}\)

    Ans. \(5 \mathrm{~s}^{-1}\)

  2. āĻ¸ā§āĻĒāĻžāĻ°āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āĻŸāĻ° āĻ¸āĻžāĻ§āĻžāĻ°āĻŖ āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āĻŸāĻ°ā§‡āĻ° āĻšā§‡āĻ¯āĻŧā§‡ āĻŦā§‡āĻļāĻŋ āĻ¸ā§āĻļā§ƒāĻ™ā§āĻ–āĻ˛āĨ¤ āĻ¯āĻĻāĻŋ āĻ¸ā§āĻĒāĻžāĻ°āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āĻŸāĻ° āĻāĻŦāĻ‚ āĻ¸āĻžāĻ§āĻžāĻ°āĻŖ āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āĻŸāĻ° āĻ…āĻŦāĻ¸ā§āĻĨāĻžāĻ¯āĻŧ āĻāĻ¨āĻŸā§āĻ°āĻĒāĻŋ āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ \(\mathbf{S}_{\mathrm{s}}\) āĻāĻŦāĻ‚ \(\mathbf{S}_{\mathbf{n}}\) āĻšāĻ¯āĻŧ āĻ¤āĻŦā§‡ āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¸āĻ āĻŋāĻ•?
    1. \(\mathrm{S}_{\mathrm{s}}=\mathrm{S}_{\mathrm{n}}\)
    2. \(\mathrm{S}_{\mathrm{s}}>\mathrm{S}_{\mathrm{n}}\)
    3. \(\mathrm{S}_{\mathrm{s}}<\mathrm{S}_{\mathrm{n}}\)
    4. \(\mathrm{S}_{\mathrm{s}} \geq \mathrm{S}_{\mathrm{n}}\)

    Ans. \(\mathrm{S}_{\mathrm{s}}<\mathrm{S}_{\mathrm{n}}\)

  3. 100w āĻāĻŦāĻ‚ 220v āĻ˛āĻŋāĻ–āĻŋāĻ¤ āĻāĻ•āĻŸāĻŋ āĻŦā§ˆāĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ• āĻŦāĻžāĻ˛ā§āĻŦ āĻĒā§āĻ°āĻ¤āĻŋāĻĻāĻŋāĻ¨ 10 āĻ˜āĻ¨ā§āĻŸāĻž āĻœā§āĻŦāĻ˛ā§‡āĨ¤ 1k-Wh-āĻāĻ° āĻŽā§‚āĻ˛ā§āĻ¯ 3.00 āĻŸāĻžāĻ•āĻž āĻšāĻ˛ā§‡,āĻāĻ° āĻœāĻ¨ā§āĻ¯ āĻœā§āĻ˛āĻžāĻ‡ āĻŽāĻžāĻ¸ā§‡ āĻŦā§ˆāĻĻā§āĻ¯ā§āĻ¤āĻŋāĻ• āĻŦāĻŋāĻ˛ āĻ•āĻ¤ āĻ†āĻ¸āĻŦā§‡?
    1. 200 Tk
    2. 155 Tk
    3. 150 Tk
    4. 93 Tk

    Ans. 93 Tk

  4. āĻāĻ•āĻŸāĻŋ āĻ—āĻ¤āĻŋāĻļā§€āĻ˛ āĻ‡āĻ˛ā§‡āĻ•āĻŸā§āĻ°āĻ¨ā§‡āĻ° āĻ­āĻ° \(\mathrm{m}_{\mathrm{e}}\) āĻšāĻ˛ā§‡, āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¸āĻ āĻŋāĻ•?
    1. \(\mathrm{m}_{\mathrm{e}}>9.11 \times 10^{-31} \mathrm{~kg}\)
    2. \(\mathrm{m}_{\mathrm{e}}<9.11 \times 10^{-31} \mathrm{~kg}\)
    3. \(\mathrm{m}_{\mathrm{e}}=9.11 \times 10^{-31} \mathrm{~kg}\)
    4. \(\mathrm{m}_{\mathrm{e}}<<9.11 \times 10^{-31} \mathrm{~kg}\)

    Ans. \(\mathrm{m}_{\mathrm{e}}>9.11 \times 10^{-31} \mathrm{~kg}\)

  5. āĻ¯āĻĻāĻŋ \(\overrightarrow{\mathrm{A}}=2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-5 \hat{\mathrm{k}}\) āĻāĻŦāĻ‚ \(\overrightarrow{\mathrm{B}}=\mathbf{m} \hat{\mathrm{i}}+2 \hat{\mathrm{j}}+\mathbf{1 0} \hat{\mathrm{k}}\) āĻ¤āĻŦā§‡ m- āĻāĻ° āĻŽāĻžāĻ¨ āĻ•āĻ¤ āĻšāĻ˛ā§‡ āĻ­ā§‡āĻ•ā§āĻŸāĻ°āĻĻā§āĻŦāĻ¯āĻŧ āĻĒāĻ°āĻ¸ā§āĻĒāĻ°ā§‡āĻ° āĻ‰āĻĒāĻ° āĻ˛āĻŽā§āĻŦ āĻšāĻŦā§‡?
    1. 12
    2. 20
    3. 22
    4. 120

    Ans. 22

  6. āĻāĻ•āĻŸāĻŋ āĻ¸āĻ°āĻ˛ āĻĻā§‹āĻ˛āĻ•ā§‡āĻ° āĻĻā§ˆāĻ°ā§āĻ˜ā§āĻ¯ āĻ…āĻĒāĻ°āĻŸāĻŋāĻ° āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖāĨ¤ āĻĻā§āĻŦāĻŋāĻ¤ā§€āĻ¯āĻŧ āĻ¸āĻ°āĻ˛ āĻĻā§‹āĻ˛āĻ•ā§‡āĻ° āĻĻā§‹āĻ˛āĻ¨āĻ•āĻžāĻ˛ 3s āĻšāĻ˛ā§‡ āĻĒā§āĻ°āĻĨāĻŽāĻŸāĻŋāĻ° āĻĻā§‹āĻ˛āĻ¨āĻ•āĻžāĻ˛ āĻ•āĻ¤?
    1. \(5.25 \mathrm{~s}\)
    2. \(4.24 \mathrm{~s}\)
    3. \(3.455 \mathrm{~s}\)
    4. \(6.20 \mathrm{~s}\)

    Ans. \(4.24 \mathrm{~s}\)

  7. āĻ˛ā§‡āĻ–āĻšāĻŋāĻ¤ā§āĻ°ā§‡, X āĻĻā§āĻŦāĻžāĻ°āĻž āĻāĻ•āĻŸāĻŋ āĻ—ā§āĻ¯āĻžāĻ¸ā§‡āĻ° āĻĒā§āĻ°āĻžāĻĨāĻŽāĻŋāĻ• āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻĻā§‡āĻ–āĻžāĻ¨ā§‹ āĻšāĻšā§āĻ›ā§‡āĨ¤ āĻ˛ā§‡āĻ–āĻšāĻŋāĻ¤ā§āĻ°ā§‡ āĻ•ā§‹āĻ¨ āĻ°ā§‡āĻ–āĻžāĻŸāĻŋ āĻāĻ•āĻŸāĻŋ āĻĒā§āĻ°āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ¯āĻŧ āĻ—ā§āĻ¯āĻžāĻ¸āĻŸāĻŋ āĻĻā§āĻŦāĻžāĻ°āĻžāĨ¤ āĻŦāĻž āĻ—ā§āĻ¯āĻžāĻ¸ā§‡āĻ° āĻ‰āĻĒāĻ° āĻ•ā§‹āĻ¨ā§‹ āĻ•āĻžāĻœ āĻ•āĻ°āĻž āĻšāĻšā§āĻ›ā§‡ āĻ¨āĻž āĻ¨āĻŋāĻ°ā§āĻĻā§‡āĻļ āĻ•āĻ°ā§‡āĨ¤

    1. XA
    2. XB
    3. XC
    4. XD

    Ans. XB

  8. āĻ¸āĻŽā§āĻĻā§āĻ°ā§‡ āĻ¨ā§‹āĻ™āĻ° āĻ•āĻ°āĻž āĻāĻ•āĻŸāĻŋ āĻœāĻžāĻšāĻžāĻœā§‡āĻ° āĻ•ā§āĻ¯āĻžāĻĒā§āĻŸā§‡āĻ¨ āĻ˛āĻ•ā§āĻˇā§āĻ¯ āĻ•āĻ°ā§‡āĻ¨ āĻ¯ā§‡ āĻĸā§‡āĻ‰āĻ¯āĻŧā§‡āĻ° āĻļā§€āĻ°ā§āĻˇāĻ—ā§āĻ˛ā§‹ āĻĒāĻ°āĻ¸ā§āĻĒāĻ° āĻĨā§‡āĻ•ā§‡ 16m āĻĻā§‚āĻ°ā§‡ āĻāĻŦāĻ‚ āĻĒā§āĻ°āĻ¤āĻŋ 2s āĻĒāĻ°āĻĒāĻ° āĻāĻ•āĻŸāĻŋ āĻĸā§‡āĻ‰ āĻ†āĻ¸āĻ›ā§‡āĨ¤ āĻĸā§‡āĻ‰āĻ—ā§āĻ˛ā§‹āĻ° āĻŦā§‡āĻ— āĻ•āĻ¤?
    1. \(8 \mathrm{~ms}^{-1}\)
    2. \(16 \mathrm{~ms}^{-1}\)
    3. \(32 \mathrm{~ms}^{-1}\)
    4. \(64 \mathrm{~ms}^{-1}\)

    Ans. \(8 \mathrm{~ms}^{-1}\)

  9. āĻāĻ•āĻŸāĻŋ āĻŦā§āĻ˛ā§‡āĻŸ āĻāĻ•āĻŸāĻŋ āĻ•āĻžāĻ ā§‡āĻ° āĻ¤āĻ•ā§āĻ¤āĻž āĻ­ā§‡āĻĻ āĻ•āĻ°āĻ¤ā§‡ āĻĒāĻžāĻ°ā§‡āĨ¤ āĻŦā§āĻ˛ā§‡āĻŸāĻŸāĻŋāĻ° āĻ—āĻ¤āĻŋ 4 āĻ—ā§āĻŖ āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻ•āĻ°āĻ˛ā§‡ āĻ‡āĻšāĻž āĻ•āĻ¯āĻŧāĻŸāĻŋ āĻ āĻāĻ•āĻ‡ āĻŽāĻžāĻĒā§‡āĻ° āĻ¤āĻ•ā§āĻ¤āĻž āĻ­ā§‡āĻĻ āĻ•āĻ°āĻ¤ā§‡ āĻĒāĻžāĻ°āĻŦā§‡?
    1. 12
    2. 9
    3. 8
    4. 16

    Ans. 16

  10. 4 kg āĻ“ 6kg āĻ­āĻ°ā§‡āĻ° āĻĻā§āĻ‡āĻŸāĻŋ āĻŦāĻ¸ā§āĻ¤ā§ āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ \(10 \mathrm{~ms}^{-1}\) āĻāĻŦāĻ‚ \(5 \mathrm{~ms}^{-1}\) āĻŦā§‡āĻ—ā§‡ āĻāĻ•āĻ‡ āĻĻāĻŋāĻ•ā§‡ āĻ—āĻ¤āĻŋāĻļā§€āĻ˛āĨ¤ āĻĒāĻ°āĻ¸ā§āĻĒāĻ° āĻ§āĻžāĻ•ā§āĻ•āĻž āĻ–āĻžāĻ“āĻ¯āĻŧāĻžāĻ° āĻĒāĻ° āĻŦāĻ¸ā§āĻ¤ā§ āĻĻā§āĻ‡āĻŸāĻŋ āĻ¯ā§āĻ•ā§āĻ¤ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāĻ¯āĻŧ āĻšāĻ˛āĻ¤ā§‡ āĻĨāĻžāĻ•āĻ˛ā§‡, āĻ¯ā§āĻ•ā§āĻ¤ āĻŦāĻ¸ā§āĻ¤ā§āĻ° āĻŦā§‡āĻ— āĻ•āĻ¤?
    1. \(10 \mathrm{~ms}^{-1}\)
    2. \(7 \mathrm{~ms}^{-1}\)
    3. \(6 \mathrm{~ms}^{-1}\)
    4. \(4 \mathrm{~ms}^{-1}\)

    Ans. \(7 \mathrm{~ms}^{-1}\)

  11. āĻ¸ā§ŒāĻ°āĻļāĻ•ā§āĻ¤āĻŋ āĻ•ā§‹āĻ¨ āĻĒāĻĻā§āĻ§āĻ¤āĻŋāĻ¤ā§‡ āĻ¸ā§ƒāĻˇā§āĻŸāĻŋ āĻšāĻ¯āĻŧ?
    1. Fission
    2. Induced Fission
    3. Fusion
    4. Chemical Reaction

    Ans. Fusion

  12. āĻāĻ•āĻŸāĻŋ āĻ¸āĻŽāĻŦāĻžāĻšā§ āĻĒā§āĻ°āĻŋāĻœāĻŽā§‡āĻ° āĻĒā§āĻ°āĻ¤āĻŋāĻ¸āĻ°āĻžāĻ™ā§āĻ• \(\sqrt{2}\) āĻšāĻ˛ā§‡,āĻāĻ° āĻ¨ā§āĻ¯ā§‚āĻ¨āĻ¤āĻŽ āĻŦāĻŋāĻšā§āĻ¯ā§āĻ¤āĻŋ āĻ•ā§‹āĻŖ āĻ•āĻ¤?
    1. 60°
    2. 15°
    3. 30°
    4. 45°

    Ans. 30°

  13. 16 cm āĻĢā§‹āĻ•āĻžāĻ¸ āĻĻā§‚āĻ°āĻ¤ā§āĻŦ āĻŦāĻŋāĻļāĻŋāĻˇā§āĻŸ āĻ‰āĻ¤ā§āĻ¤āĻ˛ āĻ˛ā§‡āĻ¨ā§āĻ¸ āĻĨā§‡āĻ•ā§‡ āĻ•āĻ¤ āĻĻā§‚āĻ°ā§‡ āĻŦāĻ¸ā§āĻ¤ā§ āĻ¸ā§āĻĨāĻžāĻĒāĻ¨ āĻ•āĻ°āĻ˛ā§‡ āĻŦāĻžāĻ¸ā§āĻ¤āĻŦ āĻŦāĻŋāĻŽā§āĻŦā§‡āĻ° āĻ†āĻ•āĻžāĻ° āĻŦāĻ¸ā§āĻ¤ā§āĻ° āĻ†āĻ•āĻžāĻ°ā§‡āĻ° āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖ āĻšāĻŦā§‡?
    1. 24 cm
    2. 16 cm
    3. 8 cm
    4. 32 cm

    Ans. 24 cm

  14. āĻāĻ•āĻŸāĻŋ āĻšāĻžāĻ‡āĻĄā§āĻ°ā§‹āĻœā§‡āĻ¨ āĻĒāĻ°āĻŽāĻžāĻŖā§ āĻ‰āĻ¤ā§āĻ¤ā§‡āĻœāĻŋāĻ¤ āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻĨā§‡āĻ•ā§‡ āĻ¨āĻŋāĻŽā§āĻ¨āĻ¤āĻŽ āĻļāĻ•ā§āĻ¤āĻŋāĻ¸ā§āĻ¤āĻ°ā§‡ āĻ†āĻ¸āĻ˛ā§‡ āĻ¯ā§‡ āĻĢā§‹āĻŸāĻ¨ āĻ¨āĻŋāĻƒāĻ¸āĻ°āĻŖ āĻ•āĻ°āĻŦā§‡ āĻ¤āĻžāĻ° āĻ¤āĻ°āĻ™ā§āĻ—āĻĻā§ˆāĻ°ā§āĻ˜ā§āĻ¯ āĻ•āĻ¤ āĻšāĻŦā§‡? āĻ‰āĻ¤ā§āĻ¤ā§‡āĻœāĻŋāĻ¤ āĻļāĻ•ā§āĻ¤āĻŋāĻ¸ā§āĻ¤āĻ° āĻāĻŦāĻ‚ āĻ¨āĻŋāĻŽā§āĻ¨āĻ¤āĻŽ āĻļāĻ•ā§āĻ¤āĻŋāĻ¸ā§āĻ¤āĻ°ā§‡āĻ° āĻļāĻ•ā§āĻ¤āĻŋ āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ -3.4 eV āĻāĻŦāĻ‚ -13.6 evāĨ¤ [āĻĻā§‡āĻ“āĻ¯āĻŧāĻž āĻ†āĻ›ā§‡, āĻĒā§āĻ˛ā§āĻ¯āĻžāĻ™ā§āĻ• āĻ§ā§āĻ°ā§āĻŦāĻ•, \(\mathrm{h}=6.63 \times 10^{-34} \mathrm{~J}-\mathrm{s}\) āĻāĻŦāĻ‚ āĻ†āĻ˛ā§‹āĻ° āĻŦā§‡āĻ—, \(c=3.0 \times 10^{8} \mathrm{~ms}^{-1}\)]
    1. \(1.95 \times 10^{-26} \mathrm{~m}\)
    2. \(1.21 \times 10^{-7} \mathrm{~m}\)
    3. \(1.0 \times 10^{-7} \mathrm{~m}\)
    4. \(0.15 \mathrm{~m}\)

    Ans. \(1.21 \times 10^{-7} \mathrm{~m}\)

  15. āĻŦā§‡āĻļāĻŋ āĻĨā§‡āĻ•ā§‡ āĻ•āĻŽ āĻ­ā§‡āĻĻāĻ¨ āĻ•ā§āĻˇāĻŽāĻ¤āĻž āĻ•ā§āĻ°āĻŽā§‡ āĻ¤āĻŋāĻ¨āĻŸāĻŋ āĻ¤ā§‡āĻœāĻ¸ā§āĻ•ā§āĻ°āĻŋāĻ¯āĻŧ āĻ°āĻļā§āĻŽāĻŋ āĻšāĻ˛ā§‹-
    1. \(\alpha, \beta \& \gamma\)
    2. \(\beta, \gamma \& \alpha\)
    3. \(\gamma, \alpha \& \beta\)
    4. \(\gamma, \beta \& \alpha\)

    Ans. \(\gamma, \beta \& \alpha\)

  16. āĻāĻ•āĻŸāĻŋ m āĻ­āĻ°ā§‡āĻ° āĻāĻŦāĻ‚ e āĻ†āĻ§āĻžāĻ¨ā§‡āĻ° āĻĒā§āĻ°ā§‹āĻŸāĻ¨āĻ•ā§‡ āĻļā§‚āĻ¨ā§āĻ¯ āĻĨā§‡āĻ•ā§‡ V āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ā§‡ āĻ¤ā§āĻŦāĻ°āĻŋāĻ¤ āĻ•āĻ°āĻž āĻšāĻ˛ā§‡ āĻāĻ° āĻļā§‡āĻˇ āĻŦā§‡āĻ— āĻ•āĻ¤?
    1. \(\sqrt{\frac{2 \mathrm{eV}}{\mathrm{m}}}\)
    2. \(\frac{2 \mathrm{eV}}{\mathrm{m}}\)
    3. \(\sqrt{\frac{\mathrm{eV}}{\mathrm{m}}}\)
    4. \(\frac{\mathrm{eV}}{\mathrm{m}}\)

    Ans. \(\sqrt{\frac{2 \mathrm{eV}}{\mathrm{m}}}\)

  17. āĻĻā§āĻ‡āĻŸāĻŋ āĻ¤āĻĄāĻŧāĻŋā§Ž āĻĒā§āĻ°āĻŦāĻžāĻš āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ \(\mathbf{I}=\mathbf{I}_{0} \sin \omega \mathbf{t}\) āĻ“ \(\mathbf{I}=\mathbf{I}_{0} \sin [\omega(\mathbf{t}+\mathbf{T} / 3)]\) āĻĻā§āĻŦāĻžāĻ°āĻž āĻĒā§āĻ°āĻ•āĻžāĻļ āĻ•āĻ°āĻž āĻ¯āĻžāĻ¯āĻŧ; āĻāĻĻā§‡āĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻĻāĻļāĻž āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ āĻ•āĻ¤?
    1. \(\pi / 2\)
    2. \(\pi / 3\)
    3. \(2\pi / 3\)
    4. \(\pi \)

    Ans. \(2\pi / 3\)

  18. āĻāĻ•āĻŸāĻŋ āĻ†āĻĻāĻ°ā§āĻļ āĻ—ā§āĻ¯āĻžāĻ¸ā§‡āĻ° āĻ¨āĻŽā§āĻ¨āĻžāĻ° āĻ¤āĻžāĻĒāĻŽāĻžāĻ¤ā§āĻ°āĻž 20°C, āĻ¯āĻĻāĻŋ āĻ¨āĻŽā§āĻ¨āĻžāĻŸāĻŋāĻ° āĻšāĻžāĻĒ āĻāĻŦāĻ‚ āĻ†āĻ¯āĻŧāĻ¤āĻ¨ āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖ āĻ•āĻ°āĻž āĻšāĻ¯āĻŧ, āĻ¤āĻŦā§‡ āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻŋāĻ¤ āĻ¤āĻžāĻĒāĻŽāĻžāĻ¤ā§āĻ°āĻž āĻ•āĻ¤?
    1. 20°C
    2. 80°C
    3. 900°C
    4. 1200°C

    Ans. 900°C

  19. āĻāĻ•āĻŸāĻŋ āĻĒāĻĻāĻžāĻ°ā§āĻĨā§‡ āĻ¤āĻžāĻĒ āĻĒā§āĻ°ā§Ÿā§‹āĻ— āĻ•āĻ°āĻžāĻ° āĻĒāĻ°āĻ“ āĻ¤āĻžāĻĒāĻŽāĻžāĻ¤ā§āĻ°āĻžāĻ° āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻšāĻ¯āĻŧāĻ¨āĻŋāĨ¤ āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨ āĻ‰āĻ•ā§āĻ¤āĻŋāĻŸāĻŋ āĻāĻ‡ āĻ˜āĻŸāĻ¨āĻžāĻ° āĻ‰āĻĒāĻ¯ā§āĻ•ā§āĻ¤ āĻŦā§āĻ¯āĻžāĻ–ā§āĻ¯āĻž āĻĒā§āĻ°āĻĻāĻžāĻ¨ āĻ•āĻ°ā§‡?
    1. āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŸāĻŋ āĻ…āĻŦāĻļā§āĻ¯āĻ‡ āĻ—ā§āĻ¯āĻžāĻ¸
    2. āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŸāĻŋāĻ° āĻĻāĻļāĻž āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻšāĻšā§āĻ›ā§‡
    3. āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŸāĻŋāĻ° āĻ¤āĻžāĻĒā§€āĻ¯āĻŧ āĻŦā§ˆāĻļāĻŋāĻˇā§āĻŸā§āĻ¯ āĻŦā§āĻ¯āĻ¤āĻŋāĻ•ā§āĻ°āĻŽ āĻ§āĻ°ā§āĻŽā§€
    4. āĻšāĻžāĻ°āĻĒāĻžāĻļā§‡āĻ° āĻĒāĻ°āĻŋāĻŦā§‡āĻļā§‡āĻ° āĻ¤ā§āĻ˛āĻ¨āĻžāĻ¯āĻŧ āĻĒāĻĻāĻžāĻ°ā§āĻĨā§‡āĻ° āĻ¤āĻžāĻĒāĻŽāĻžāĻ¤ā§āĻ°āĻž āĻ•āĻŽ

    Ans. āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŸāĻŋāĻ° āĻĻāĻļāĻž āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻšāĻšā§āĻ›ā§‡

  20. r āĻĻā§‚āĻ°āĻ¤ā§āĻŦā§‡ āĻ°āĻžāĻ–āĻž āĻĻā§āĻŸāĻŋ āĻ•ā§āĻˇā§āĻĻā§āĻ° āĻ•āĻŖāĻžāĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻĒāĻ°āĻ¸ā§āĻĒāĻ° āĻŽāĻ§ā§āĻ¯āĻžāĻ•āĻ°ā§āĻˇā§€āĻ¯āĻŧ āĻ†āĻ•āĻ°ā§āĻˇāĻŖ āĻŦāĻ˛ F, āĻ•āĻŖāĻž āĻĻā§āĻ‡āĻŸāĻŋāĻ° āĻŽāĻžāĻāĻ–āĻžāĻ¨ā§‡ āĻāĻ•āĻŸāĻŋ āĻ­āĻžāĻ°ā§€ āĻ˛ā§‹āĻšāĻžāĻ° āĻĒāĻžāĻ¤ āĻ°āĻžāĻ–āĻž āĻšāĻ˛ā§‡ āĻāĻ–āĻ¨ āĻ¤āĻžāĻĻā§‡āĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻĒāĻ°āĻ¸ā§āĻĒāĻ° āĻ†āĻ•āĻ°ā§āĻˇāĻŖ āĻŦāĻ˛ āĻ•āĻ¤?
    1. 0
    2. F
    3. F/2
    4. F/4

    Ans. F

  21. āĻšāĻŋāĻ¤ā§āĻ°ā§‡ āĻĻā§‡āĻ–āĻžāĻ¨ā§‹ āĻĒāĻĨ āĻĻāĻŋāĻ¯āĻŧā§‡ āĻāĻ•āĻŸāĻŋ 4.0 N āĻ“āĻœāĻ¨ā§‡āĻ° āĻĒāĻžāĻĨāĻ°āĻ•ā§‡ āĻĒā§ƒāĻĨāĻŋāĻŦā§€āĻ° āĻ…āĻ­āĻŋāĻ•āĻ°ā§āĻˇā§€āĻ¯āĻŧ āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°ā§‡ P āĻŦāĻŋāĻ¨ā§āĻĻā§ āĻĨā§‡āĻ•ā§‡ R āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ¤ā§‡ āĻ¸ā§āĻĨāĻžāĻ¨āĻžāĻ¨ā§āĻ¤āĻ°āĻŋāĻ¤ āĻ•āĻ°āĻž āĻšāĻ˛ā§‹āĨ¤ āĻĒāĻžāĻĨāĻ°āĻŸāĻŋāĻ° āĻ¸ā§āĻĨāĻŋāĻ¤āĻŋāĻļāĻ•ā§āĻ¤āĻŋ āĻ•āĻ¤ āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻĒā§‡āĻ˛?

    1. 120 J
    2. 200 J
    3. 280 J
    4. 1200 J

    Ans. 120 J

  22. āĻĒāĻ°āĻ¸ā§āĻĒāĻ° āĻĨā§‡āĻ•ā§‡ s āĻĻā§āĻ°āĻ¤ā§āĻŦā§‡ āĻ…āĻŦāĻ¸ā§āĻĨāĻŋāĻ¤ āĻĻā§āĻ‡āĻŸāĻŋ āĻ¸āĻŽāĻžāĻ¨ā§āĻ¤āĻ°āĻžāĻ˛ āĻšāĻŋāĻĄāĻŧāĻ•ā§‡ āĻāĻ•āĻŦāĻ°ā§āĻŖā§€ āĻ†āĻ˛ā§‹ āĻĻā§āĻŦāĻžāĻ°āĻž āĻ†āĻ˛ā§‹āĻ•āĻŋāĻ¤ āĻ•āĻ°ā§‡ āĻšāĻŋāĻĄāĻŧ āĻĨā§‡āĻ•ā§‡ D āĻĻā§āĻ°āĻ¤ā§āĻŦā§‡ āĻ…āĻŦāĻ¸ā§āĻĨāĻŋāĻ¤ āĻĒāĻ°ā§āĻĻāĻžāĻ¯āĻŧ āĻŦā§āĻ¯āĻžāĻ¤āĻŋāĻšāĻžāĻ° āĻĒāĻŸā§āĻŸāĻŋ āĻĒāĻžāĻ“āĻ¯āĻŧāĻž āĻ—ā§‡āĻ˛āĨ¤ āĻ§āĻ°āĻž āĻ¯āĻžāĻ• āĻĄā§‹āĻ°āĻžāĻ° āĻĒā§āĻ°āĻ¸ā§āĻĨ X, āĻ¯āĻĻāĻŋ s āĻāĻŦāĻ‚ D āĻ‰āĻ­āĻ¯āĻŧāĻ•ā§‡ āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖ āĻ•āĻ°āĻž āĻšāĻ¯āĻŧ āĻ¤āĻŦā§‡ āĻĄā§‹āĻ°āĻžāĻ° āĻĒā§āĻ°āĻ¸ā§āĻĨā§‡āĻ° āĻŽāĻžāĻ¨ āĻ•āĻŋ āĻšāĻŦā§‡?
    1. X/2
    2. X
    3. 2X
    4. 4X

    Ans. X

  23. āĻŦāĻ°ā§āĻ¤āĻ¨ā§€āĻ¤ā§‡ B āĻāĻŦāĻ‚ C āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ āĻ•āĻ¤?

    1. 1 V
    2. 2 V
    3. 3 V
    4. 9 V

    Ans. 2 V

  24. āĻ˛ā§‡āĻ–āĻšāĻŋāĻ¤ā§āĻ°ā§‡ āĻāĻ•āĻŸāĻŋ āĻ¤āĻžāĻ°ā§‡āĻ° āĻĻā§āĻ‡ āĻĒā§āĻ°āĻžāĻ¨ā§āĻ¤ā§‡āĻ° āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ā§‡āĻ° āĻ¸āĻžāĻĨā§‡ āĻ¤āĻĄāĻŧāĻŋā§Ž āĻĒā§āĻ°āĻŦāĻžāĻšā§‡āĻ° āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨ āĻĻā§‡āĻ–āĻžāĻ¨ā§‹ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡āĨ¤ āĻ¤āĻžāĻ°āĻŸāĻŋāĻ° āĻ°ā§‹āĻ§ āĻ•āĻ¤?

    1. \(6 \Omega\)
    2. \(0.67 \Omega\)
    3. \(5 \Omega\)
    4. \(1.5 \Omega\)

    Ans. \(1.5 \Omega\)

  25. āĻāĻ•āĻŸāĻŋ āĻ¸āĻŽāĻžāĻ¨ā§āĻ¤āĻ°āĻžāĻ˛ āĻĒāĻžāĻ¤ āĻ§āĻžāĻ°āĻ•āĻ•ā§‡ āĻšāĻžāĻ°ā§āĻœāĻŋāĻ¤ āĻ•āĻ°āĻžāĻ° āĻĢāĻ˛ā§‡ āĻāĻŸāĻŋāĻ° āĻĒāĻžāĻ¤ āĻĻā§āĻ‡āĻŸāĻŋāĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ āĻšāĻ¯āĻŧ VāĨ¤ āĻ§āĻžāĻ°āĻ•āĻŸāĻŋāĻ° āĻ¸āĻžā§āĻšāĻŋāĻ¤ āĻļāĻ•ā§āĻ¤āĻŋ āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖ āĻ•āĻ°āĻžāĻ° āĻœāĻ¨ā§āĻ¯ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āĻ¯ āĻ•āĻ¤ āĻšāĻŦā§‡?
    1. \(\frac{1}{4} \mathrm{~V}\)
    2. \(\frac{1}{2} \mathrm{~V}\)
    3. \(\sqrt{2} \mathrm{~V}\)
    4. 2 V

    Ans. \(\sqrt{2} \mathrm{~V}\)

  26. āĻ¨āĻŋāĻšā§‡āĻ° āĻŽāĻŋāĻļā§āĻ°āĻŋāĻ¤ āĻāĻ•āĻ• āĻ—ā§āĻ˛ā§‹āĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ“āĻ¯āĻŧāĻžāĻŸ āĻāĻ° āĻ¸āĻŽāĻ¤ā§āĻ˛ā§āĻ¯ āĻ¨āĻ¯āĻŧ?
    1. Joul/sec
    2. (Amp) (Volt)
    3. \(\left(\mathrm{Amp}^{2}\right)(\Omega)\)
    4. \(\Omega^{2} /\) Volt

    Ans. \(\Omega^{2} /\) Volt

  27. āĻāĻ•āĻŸāĻŋ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒāĻ°āĻŋāĻŦāĻžāĻšā§€ āĻ˛āĻŽā§āĻŦāĻž āĻ¸āĻ°āĻ˛ āĻ¤āĻžāĻ° āĻĨā§‡āĻ•ā§‡ 2 cm āĻĻā§āĻ°āĻ¤ā§āĻŦā§‡ āĻšā§āĻŽā§āĻŦāĻ• āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°ā§‡āĻ° āĻŽāĻžāĻ¨ \(\mathbf{1 0}^{-6} \mathrm{~T}\) āĻšāĻ˛ā§‡ āĻ¤āĻžāĻ°āĻŸāĻŋāĻ° āĻŽāĻ§ā§āĻ¯ āĻĻāĻŋāĻ¯āĻŧā§‡ āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻāĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻŖ āĻ•āĻ¤?
    1. 0.01 A
    2. 0.1 A
    3. 1 A
    4. 10 A

    Ans. 0.1 A

  28. \({ }_{83}^{214} \mathrm{Bi}\) āĻ†āĻ‡āĻ¸ā§‹āĻŸā§‹āĻĒ āĻšāĻ¤ā§‡ āĻāĻ•āĻŸāĻŋ āĻ†āĻ˛āĻĢāĻž āĻ•āĻŖāĻž āĻ¨āĻŋāĻƒāĻ¸āĻ°āĻŖ āĻāĻ° āĻĢāĻ˛ā§‡ āĻĒā§āĻ°ā§‹āĻĄāĻžāĻ•ā§āĻŸ āĻ†āĻ‡āĻ¸ā§‹āĻŸā§‹āĻĒ āĻšāĻŦā§‡-
    1. \({ }_{79}^{210} \mathrm{Au}\)
    2. \({ }_{81}^{210} \mathrm{Ti}\)
    3. \({ }_{83}^{210} \mathrm{Bi}\)
    4. \({ }_{85}^{218} \mathrm{At}\)

    Ans. \({ }_{81}^{210} \mathrm{Ti}\)

  29. āĻāĻ•āĻŸāĻŋ āĻ•āĻžāĻ ā§‡āĻ° āĻ–āĻŖā§āĻĄāĻ•ā§‡ āĻ†āĻ¨ā§āĻ­ā§‚āĻŽāĻŋāĻ•ā§‡āĻ° āĻ¸āĻžāĻĨā§‡ 60° āĻ•ā§‹āĻŖā§‡ 200N āĻŦāĻ˛ āĻĻā§āĻŦāĻžāĻ°āĻž āĻŸāĻžāĻ¨āĻž āĻšāĻšā§āĻ›ā§‡āĨ¤ āĻŦāĻ¸ā§āĻ¤ā§āĻŸāĻŋāĻ° āĻ‰āĻĒāĻ° āĻ†āĻ¨ā§āĻ­ā§āĻŽāĻŋāĻ•ā§‡āĻ° āĻĻāĻŋāĻ•ā§‡ āĻ•āĻžāĻ°ā§āĻ¯āĻ•āĻžāĻ°ā§€ āĻŦāĻ˛ āĻ•āĻ¤?
    1. 200 N
    2. 100 N
    3. 175 N
    4. zero

    Ans. 100 N

  30. āĻāĻ•āĻŸāĻŋ āĻĒāĻžāĻĨāĻ°āĻ•ā§‡ āĻ­ā§‚āĻŽāĻŋ āĻĨā§‡āĻ•ā§‡ 45 m āĻ‰āĻāĻšā§ āĻĻāĻžāĻ˛āĻžāĻ¨ā§‡āĻ° āĻ‰āĻĒāĻ° āĻĨā§‡āĻ•ā§‡ āĻ­ā§‚āĻŽāĻŋāĻ° āĻ¸āĻŽāĻžāĻ¨ā§āĻ¤āĻ°āĻžāĻ˛ā§‡ \(16 \mathrm{~ms}^{-1}\) āĻŦā§‡āĻ—ā§‡ āĻ¨āĻŋāĻ•ā§āĻˇā§‡āĻĒ āĻ•āĻ°āĻž āĻšāĻ˛ā§‹āĨ¤ āĻĒāĻžāĻĨāĻ°āĻŸāĻŋāĻ° āĻ­ā§‚āĻŽāĻŋāĻ¤ā§‡ āĻĒā§ŒāĻ›āĻžāĻ¤ā§‡ āĻ•āĻ¤ āĻ¸āĻŽāĻ¯āĻŧ āĻ˛āĻžāĻ—āĻŦā§‡?
    1. 2.8 s
    2. 0.4 s
    3. 3 s
    4. 1 s

    Ans. 3 s

āĻ°āĻ¸āĻžā§ŸāĻ¨

  1. āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ¯āĻŧ āĻĒā§āĻ°āĻ­āĻžāĻŦāĻ•ā§‡āĻ° āĻ•āĻžāĻœ āĻšāĻ˛-

    1. āĻ¸āĻžāĻŽā§āĻ¯āĻžāĻŦāĻ¸ā§āĻĨāĻž āĻĄāĻžāĻ¨ āĻĻāĻŋāĻ•ā§‡ āĻ¨ā§‡āĻ¯āĻŧāĻž
    2. āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻ¸āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻ¨ āĻļāĻ•ā§āĻ¤āĻŋ \(\mathrm{E}_{\mathrm{a}}\) āĻ•āĻŽāĻžāĻ¨ā§‹
    3. āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻāĻ¨āĻĨāĻžāĻ˛āĻĒāĻŋ āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻ•āĻ°āĻž
    4. āĻ¸āĻžāĻŽā§āĻ¯ āĻŽāĻŋāĻļā§āĻ°āĻŖā§‡ āĻ‰ā§ŽāĻĒāĻžāĻĻā§‡āĻ° % āĻĒāĻ°āĻŋāĻŽāĻžāĻ¨ āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻ•āĻ°āĻž

    Ans. āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻ¸āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻ¨ āĻļāĻ•ā§āĻ¤āĻŋ \(\mathrm{E}_{\mathrm{a}}\) āĻ•āĻŽāĻžāĻ¨ā§‹

  2. āĻāĻ•āĻŸāĻŋ āĻšā§āĻ¯āĻžāĻ˛āĻžāĻ‡āĻĄ āĻ˛āĻŦāĻŖāĻ•ā§‡ āĻ˜āĻ¨ \(\mathbf{H}_{2} \mathrm{SO}_{4}\) āĻ āĻ‰āĻ¤ā§āĻ¤āĻĒā§āĻ¤ āĻ•āĻ°āĻž āĻšāĻ˛ āĻŦā§‡āĻ—ā§āĻ¨āĻŋ āĻ§ā§‹āĻ¯āĻŧāĻžāĻ° āĻ‰ā§ŽāĻĒāĻ¤ā§āĻ¤āĻŋ āĻ•ā§‹āĻ¨ āĻ†āĻ¯āĻŧāĻ¨ā§‡āĻ° āĻ‰āĻĒāĻ¸ā§āĻĨāĻŋāĻ¤āĻŋ āĻ¨āĻŋāĻ°ā§āĻĻā§‡āĻļāĻ•?
    1. \(\mathrm{I}^{-}\)
    2. \(\mathrm{Br}^{-}\)
    3. \(\mathrm{Cl}^{-}\)
    4. \(\mathrm{F}^{-}\)

    Ans. \(\mathrm{I}^{-}\)

  3. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻĒā§āĻ°āĻŽāĻžāĻŖ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻāĻ¨āĻĨāĻžāĻ˛āĻĒāĻŋ, \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}\) āĻ•āĻ¤?
    \(2 \mathrm{C}+3 \mathrm{H}_{2} \rightarrow \mathrm{C}_{2} \mathrm{H}_{6}\)
    āĻ•āĻžāĻ°ā§āĻŦāĻ¨ (C), āĻšāĻžāĻ‡āĻĄā§āĻ°ā§‹āĻœā§‡āĻ¨ (H) āĻāĻŦāĻ‚ āĻ‡āĻĨā§‡āĻ¨ (CH) āĻāĻ° āĻĒā§āĻ°āĻŽāĻžāĻŖ āĻĻāĻšāĻ¨ āĻ¤āĻžāĻĒ,\(\mathbf{\Delta} \mathbf{H}_{\mathbf{C}}^{\circ}\) āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ -394, -286, āĻāĻŦāĻ‚ \(-1561 \mathrm{~kJ} \mathrm{~mol}^{-1}\)

    1. \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}=-394-286+156 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
    2. \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}=-1561-(2 \times-394)-(3 \times-286) \mathrm{kJ} \mathrm{mol}^{-1}\)
    3. \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}=-1561+394+286 \mathrm{~kJ} \mathrm{~mol}^{-1}\)
    4. \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}=2 \times(-394)+3 \times(-286)-(-1561) \mathrm{kJ} \mathrm{mol}^{-1}\)

    Ans. \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}=2 \times(-394)+3 \times(-286)-(-1561) \mathrm{kJ} \mathrm{mol}^{-1}\)

  4. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻŸā§‡āĻĢāĻ˛āĻ¨ā§‡āĻ° āĻŽāĻ¨ā§‹āĻŽāĻžāĻ°?
    1. \(\mathrm{CH}_{2}=\mathrm{CH}_{2}\)
    2. \(\mathrm{CHCl}-\mathrm{CHCl}\)
    3. \(\mathrm{C}_{6} \mathrm{H}_{6}-\mathrm{CH}=\mathrm{CH}_{2}\)
    4. \(\mathrm{CF}_{2}=\mathrm{CF}_{2}\)

    Ans. \(\mathrm{CF}_{2}=\mathrm{CF}_{2}\)

  5. āĻŦā§āĻ°ā§‹āĻŽāĻŋāĻ¨ āĻ‡āĻĨāĻŋāĻ¨ā§‡āĻ° āĻ¸āĻžāĻĨā§‡ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ•āĻ°ā§‡āĨ¤ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻŸāĻŋāĻ° āĻ•ā§ŒāĻļāĻ˛ āĻ•āĻŋ?
    1. āĻ•ā§‡āĻ¨ā§āĻĻā§āĻ°āĻžāĻ•āĻ°ā§āĻˇā§€ āĻ¯ā§āĻ¤
    2. āĻ•ā§‡āĻ¨ā§āĻĻā§āĻ°āĻžāĻ•āĻ°ā§āĻˇā§€ āĻĒā§āĻ°āĻ¤āĻŋāĻ¸ā§āĻĨāĻžāĻĒāĻ¨
    3. āĻ‡āĻ˛ā§‡āĻ•āĻŸā§āĻ°āĻ—ā§āĻ°āĻžāĻšā§€ āĻ¯ā§āĻ¤
    4. āĻ‡āĻ˛ā§‡āĻŸā§āĻ°āĻ—ā§āĻ°āĻžāĻšā§€ āĻĒā§āĻ°āĻ¤āĻŋāĻ¸ā§āĻĨāĻžāĻĒāĻ¨

    Ans. āĻ‡āĻ˛ā§‡āĻ•āĻŸā§āĻ°āĻ—ā§āĻ°āĻžāĻšā§€ āĻ¯ā§āĻ¤

  6. \(\mathbf{H}_{2} \mathbf{O}_{2}\) āĻ•ā§‡ \(\mathrm{MnO}_{4}^{-}\) āĻĻā§āĻŦāĻžāĻ°āĻž āĻœāĻžāĻ°āĻŖ āĻ•āĻ°āĻž āĻšāĻ˛ā§‡ āĻ•ā§‹āĻˇ āĻŦāĻŋāĻ­āĻŦ, \(\mathbf{E}^{\circ}\) Cell
    āĻšāĻŋāĻ¸āĻžāĻŦ āĻ•āĻ°āĨ¤ āĻ…āĻ°ā§āĻ§-āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ—ā§āĻ˛ā§‹ āĻšāĻ˛-
    \(2 \mathrm{H}^{+}+\mathrm{O}_{2}+2 \mathrm{e}^{-} \rightleftharpoons \mathrm{H}_{2} \mathrm{O}_{2} ; \mathrm{E}^{0}=+0.68 \mathrm{~V}\)
    \(\mathrm{MnO}_{4}^{-}+8 \mathrm{H}^{+}+5 \mathrm{e}^{-}=\mathrm{Mn}^{2+}+4 \mathrm{H}_{2} \mathrm{O} ; \mathrm{E}^{0}=+1.51 \mathrm{~V}\)

    1. \(\mathrm{E}_{\mathrm{Cell}}^{0}=-0.83 \mathrm{~V}\)
    2. \(\mathrm{E}_{\text {Cell }}^{0}=+0.83 \mathrm{~V}\)
    3. \(\mathrm{E}_{\text {Cell }}^{0}=+0.38 \mathrm{~V}\)
    4. \(\mathrm{E}_{\mathrm{Cell}}^{0}=+2.19 \mathrm{~V}\)

    Ans. \(\mathrm{E}_{\text {Cell }}^{0}=+0.83 \mathrm{~V}\)

  7. 100°C āĻ¤āĻžāĻĒāĻŽāĻžāĻ¤ā§āĻ°āĻžāĻ¯āĻŧ āĻ“ 1 āĻŦāĻžāĻ¯āĻŧā§āĻŽāĻ¨ā§āĻĄāĻ˛ā§€āĻ¯āĻŧ āĻšāĻžāĻĒā§‡ 1 āĻ•āĻŋāĻ˛ā§‹āĻ—ā§āĻ°āĻžāĻŽ āĻœāĻ˛ā§€āĻ¯āĻŧ āĻŦāĻžāĻˇā§āĻĒā§‡āĻ° āĻ†āĻ¯āĻŧāĻ¤āĻ¨ āĻ•āĻ¤?
    1. 12 L
    2. 100 L
    3. 1200 L
    4. 1701 L

    Ans. 1701 L

  8. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ•ā§āĻ¯āĻžāĻ¨āĻŋāĻœāĻžāĻ°ā§‹ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž?
    1. \(2 \mathrm{HCHO}(1) \stackrel{50 \% \mathrm{NaOH}, 20-30^{\circ} \mathrm{C}}{\rightarrow} \mathrm{CH}_{3} \mathrm{OH}(\mathrm{aq})+\)\(\mathrm{HCOO}^{-} \mathrm{Na}^{+}(\mathrm{aq})\)
    2. \(2 \mathrm{CH}_{3} \mathrm{CHO}(1) \stackrel{\text { dil. } \mathrm{NaOH}, 20-30^{\circ} \mathrm{C}}{\rightarrow} \mathrm{CH}_{3} \mathrm{CH}(\mathrm{OH})\)
      \(\mathrm{CH}_{2} \mathrm{CHO}(\mathrm{aq})\)
    3. \(\mathrm{CH}_{3} \mathrm{CHO}(1) \stackrel{\mathrm{LiAlH}_{4}, \text { conc. HCI }}{\longrightarrow} \mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
    4. \(\mathrm{CH}_{3} \mathrm{CONH}_{2}(\mathrm{aq})+\mathrm{Br}_{2}(\mathrm{aq})+4 \mathrm{NaOH}(\mathrm{aq}) \stackrel{\text { Heat }}{\rightarrow}\)
      \(\mathrm{CH}_{3} \mathrm{NH}_{2}(\mathrm{aq})+2 \mathrm{NaBr}(\mathrm{aq})+\mathrm{Na}_{2} \mathrm{CO}_{3}(\mathrm{aq})+\)
      \(2 \mathrm{H}_{2} \mathrm{O}(1)\)

    Ans. \(2 \mathrm{HCHO}(1) \stackrel{50 \% \mathrm{NaOH}, 20-30^{\circ} \mathrm{C}}{\rightarrow} \mathrm{CH}_{3} \mathrm{OH}(\mathrm{aq})+\)\(\mathrm{HCOO}^{-} \mathrm{Na}^{+}(\mathrm{aq})\)

  9. āĻāĻ•āĻŸāĻŋ āĻĒā§āĻ°āĻĨāĻŽ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ¯āĻŧ āĻ…āĻ°ā§āĻ§āĻžāĻ¯āĻŧā§ 15 min āĻšāĻ˛ā§‡ āĻšāĻžāĻ° āĻ§ā§āĻ°ā§āĻŦāĻ• āĻ•āĻ¤?
    1. \(4.62 \times 10^{-2} \mathrm{~min}^{-1}\)
    2. \(3.20 \times 10^{-2} \mathrm{~min}^{-1}\)
    3. \(5.01 \times 10^{-2} \mathrm{~min}^{-1}\)
    4. \(4.50 \times 10^{-2} \mathrm{~min}^{-1}\)

    Ans. \(4.62 \times 10^{-2} \mathrm{~min}^{-1}\)

  10. āĻāĻ•āĻŸāĻŋ āĻ°ā§‹āĻ—ā§€āĻ° āĻ°āĻ•ā§āĻ¤ā§‡āĻ° āĻ—ā§āĻ˛ā§āĻ•ā§‹āĻœā§‡āĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻŖ \(\mathbf{1 0} \mathrm{mmol} \mathbf{L}^{-1}\)āĨ¤āĻŽāĻŋāĻ˛āĻŋāĻ—ā§āĻ°āĻžāĻŽ/ āĻĄā§‡āĻ¸āĻŋāĻ˛āĻŋāĻŸāĻžāĻ° āĻāĻ•āĻ•ā§‡ āĻāĻ° āĻŽāĻžāĻ¨ āĻ•āĻ¤?
    1. 180
    2. 18.0
    3. 1.80
    4. None

    Ans. 180

  11. āĻĸāĻžāĻ˛āĻžāĻ‡ āĻ˛ā§ŒāĻšā§‡ āĻ•āĻžāĻ°ā§āĻŦāĻ¨ā§‡āĻ° āĻĒāĻ°āĻŋāĻŽāĻžāĻ¨ āĻ•āĻ¤?
    1. \(2.0-4.5 \%\)
    2. \(0.12-0.25 \%\)
    3. \(0.20 \%\)
    4. \(0.25-1.70 \%\)

    Ans. \(2.0-4.5 \%\)

  12. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ¯āĻŧ āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¸āĻ¤ā§āĻ¯?
    \(\mathrm{SnCl}_{2}+2 \mathrm{FeCl}_{3}=\mathrm{SnCl}_{4}+2 \mathrm{FeCl}_{2}\)

    1. Sn āĻœāĻžāĻ°āĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡
    2. Cl āĻœāĻžāĻ°āĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡
    3. Fe āĻœāĻžāĻ°āĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡
    4. Cl āĻŦāĻŋāĻœāĻžāĻ°āĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡

    Ans. Sn āĻœāĻžāĻ°āĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡

  13. āĻ†āĻ‡āĻ¸ā§‹āĻŸāĻ¨ā§‡āĻ° āĻ‰āĻĻāĻžāĻšāĻ°āĻŖ-
    1. \({ }_{7}^{13} \mathrm{~N},{ }_{6}^{13} \mathrm{C}\)
    2. \({ }_{18}^{40} \mathrm{Ar},{ }_{20}^{40} \mathrm{Ca}\)
    3. \({ }_{20}^{40} \mathrm{Ca},{ }_{19}^{40} \mathrm{~K}\)
    4. \({ }_{15}^{31} \mathrm{P},{ }_{16}^{32} \mathrm{~S}\)

    Ans. \({ }_{15}^{31} \mathrm{P},{ }_{16}^{32} \mathrm{~S}\)

  14. āĻĒā§āĻ°āĻĒāĻžāĻ‡āĻ¨ā§‡ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ \(\pi \) āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻ° āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻ•āĻ¤?
    1. 3āĻŸāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ 2āĻŸāĻŋ \(\pi \)-āĻŦāĻ¨ā§āĻ§āĻ¨
    2. 6āĻŸāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ 2āĻŸāĻŋ \(\pi \)-āĻŦāĻ¨ā§āĻ§āĻ¨
    3. 2āĻŸāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ 2āĻŸāĻŋ \(\pi \)-āĻŦāĻ¨ā§āĻ§āĻ¨
    4. 2āĻŸāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ 4āĻŸāĻŋ \(\pi \)-āĻŦāĻ¨ā§āĻ§āĻ¨

    Ans. 6āĻŸāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āĻ§āĻ¨ āĻāĻŦāĻ‚ 2āĻŸāĻŋ \(\pi \)-āĻŦāĻ¨ā§āĻ§āĻ¨

  15. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨ āĻœā§ˆāĻŦ āĻ¯ā§ŒāĻ—āĻŸāĻŋ āĻ†ā§Ÿā§‹āĻĄā§‹āĻĢāĻ°āĻŽ āĻĒāĻ°ā§€āĻ•ā§āĻˇāĻž āĻĻā§‡āĻ¯āĻŧ āĻ¨āĻž?
    1. \(\mathrm{CH}_{3} \mathrm{COCl}\)
    2. \(\mathrm{CH}_{3} \mathrm{CHOHCH}_{3}\)
    3. \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\)
    4. \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)

    Ans. \(\mathrm{CH}_{3} \mathrm{COCl}\)

  16. \(\mathrm{C}_{4} \mathrm{H}_{10} \mathrm{O}\) āĻāĻ° āĻœāĻ¨ā§āĻ¯ āĻ¸āĻ°ā§āĻŦā§‹āĻšā§āĻš āĻ•āĻ¤āĻŸāĻŋ āĻ‡āĻĨāĻžāĻ° āĻ¯ā§ŒāĻ—ā§‡āĻ° āĻ¸āĻŽāĻžāĻŖā§ āĻĒāĻžāĻ“āĻ¯āĻŧāĻž āĻ¯āĻžāĻ¯āĻŧ?
    1. 3
    2. 4
    3. 5
    4. 6

    Ans. 3

  17. āĻāĻ•āĻŸāĻŋ āĻ•āĻĒāĻžāĻ° (II) āĻĻā§āĻ°āĻŦāĻŖā§‡āĻ° āĻŽāĻ§ā§āĻ¯ āĻĻāĻŋāĻ¯āĻŧā§‡ āĻ…āĻ°ā§āĻ§ āĻ˜āĻŖā§āĻŸāĻž āĻ¯āĻžāĻŦāĻ¤ 10.0 Ampere āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒā§āĻ°āĻŦāĻžāĻšāĻŋāĻ¤ āĻ•āĻ°āĻ˛ā§‡ āĻ•āĻŋ āĻĒāĻ°āĻŋāĻŽāĻžāĻŖ āĻ•āĻĒāĻžāĻ° āĻ¸āĻžā§āĻšāĻŋāĻ¤ āĻŦāĻž āĻĻā§āĻ°āĻŦā§€āĻ­ā§‚āĻ¤ āĻšāĻŦā§‡?
    1. 6.3 g
    2. 1.5 g
    3. 0.60 g
    4. None

    Ans. None

  18. āĻāĻ•āĻŸāĻŋ 1.0M āĻ¸ā§‹āĻĄāĻŋāĻ¯āĻŧāĻžāĻŽ āĻšāĻžāĻ‡āĻĄā§āĻ°ā§‹āĻ•ā§āĻ¸āĻžāĻ‡āĻĄā§‡āĻ° āĻœāĻ˛ā§€āĻ¯āĻŧ āĻĻā§āĻ°āĻŦāĻŖā§‡āĻ° 100mL āĻ•ā§‡ āĻ¸āĻŽā§āĻĒā§‚āĻ°ā§āĻŖāĻ°ā§‚āĻĒā§‡ āĻ¨āĻŋāĻ°āĻĒā§‡āĻ•ā§āĻˇ āĻ•āĻ°āĻ¤ā§‡ āĻ•āĻ¤ āĻ†āĻ¯āĻŧāĻ¤āĻ¨ 0.5M āĻ…āĻ•ā§āĻ¸āĻžāĻ˛āĻŋāĻ• āĻāĻ¸āĻŋāĻĄ āĻĒā§āĻ°ā§Ÿā§‹āĻœāĻ¨ āĻĒāĻĄāĻŧāĻŦā§‡?

    1. 50 mL
    2. 100 mL
    3. 200 mL
    4. 400 mL

    Ans. 100 mL

  19. IUPAC āĻĒāĻĻā§āĻ§āĻ¤āĻŋāĻ¤ā§‡ āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ¯ā§ŒāĻ—āĻŸāĻŋāĻ° āĻ¨āĻžāĻŽ āĻ•āĻŋ?

    \(\left(\mathrm{CH}_{3}\right)_{3} \mathrm{C}-\mathrm{CH}_{2}-\mathrm{CH}\left(\mathrm{CH}_{3}\right)_{2}\)

    1. 2,2,4-Trimethylpentane
    2. 2,4,4-Trimethylpentane
    3. Isopentane
    4. Neooctane

    Ans. 2,2,4-Trimethylpentane

  20. āĻ¨āĻŋāĻšā§‡āĻ° āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻĒā§āĻ°āĻ§āĻžāĻ¨ āĻ‰ā§ŽāĻĒāĻžāĻĻ āĻ•āĻŋ?
    \(\mathrm{CH} \equiv \mathrm{CH}+\mathrm{H}_{2} \mathrm{O} \stackrel{20 \% \mathrm{H}_{2} \mathrm{SO}_{4} \cdot 60^{\circ} \mathrm{C}}{\rightarrow} ?\)

    1. \(\mathrm{CH}_{3} \mathrm{CHO}\)
    2. \(\mathrm{CH}_{3} \mathrm{COOH}\)
    3. \(\mathrm{CH}_{3} \mathrm{CH}_{2} \mathrm{OH}\)
    4. \(\mathrm{CH}_{3} \mathrm{COCH}_{3}\)

    Ans. \(\mathrm{CH}_{3} \mathrm{CHO}\)

  21. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨ āĻ…āĻ°āĻŦāĻŋāĻŸāĻžāĻ˛ āĻ‡āĻ˛ā§‡āĻ•āĻŸā§āĻ°āĻ¨ āĻ†āĻ—ā§‡ āĻĒā§āĻ°āĻŦā§‡āĻļ āĻ•āĻ°ā§‡?
    1. 4f
    2. 5d
    3. 6p
    4. 7s

    Ans. 4f

  22. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻŽāĻŋāĻļā§āĻ°āĻŖāĻ—ā§āĻ˛ā§‹āĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻŦāĻžāĻĢāĻžāĻ° āĻĻā§āĻ°āĻŦāĻŖ?
    1. 0.2 M 10 mL CH2COOH + 0.2 M 10 mL NaOH
    2. 0.2 M 10 mL CH3COOH + 0.1 M 10 mL NaOH
    3. 0.1 M 10 mL CH3COOH + 0.2 M 10 mL NaOH
    4. 0.1 M 10 mL HCl + 0.2 M 10 mL NaOH

    Ans. 0.2 M 10 mL CH3COOH + 0.1 M 10 mL NaOH

  23. 0.1 M \(\mathrm{CH}_{3} \mathrm{COOH}\) āĻĻā§āĻ°āĻŦāĻŖā§‡āĻ° pH āĻ•āĻ¤? āĻāĻ–āĻžāĻ¨ā§‡, \(\mathbf{K}_{\mathrm{a}}=1.8 \times 10^{-5}\)
    1. 2.672
    2. 2.772
    3. 2.872
    4. 2.972

    Ans. 2.872

  24. āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¸āĻ°ā§āĻŦāĻžāĻ§āĻŋāĻ• āĻ¸āĻ‚āĻ–ā§āĻ¯āĻ• āĻ¯ā§ŒāĻ— āĻ—āĻ āĻ¨ āĻ•āĻ°ā§‡?
    1. Argon
    2. Krypton
    3. Xenon
    4. Radon

    Ans. Xenon

  25. \(\mathrm{S}_{2} \mathrm{O}_{3}{ }^{2-}\) āĻāĻŦāĻ‚ \(\mathrm{S}_{4} \mathrm{O}_{6}^{2-}\) āĻ āĻ¸āĻžāĻ˛āĻĢāĻžāĻ°ā§‡āĻ° āĻœāĻžāĻ°āĻŖ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻšāĻ˛-
    1. -2 and -2.5
    2. +2 and +2.5
    3. +4 and +6
    4. +2 and -2

    Ans. +2 and +2.5

  26. āĻŦā§‡āĻ¨āĻœāĻŋāĻ¨ āĻĄāĻžāĻ¯āĻŧāĻžāĻœā§‹āĻ¨āĻŋāĻ¯āĻŧāĻžāĻŽ āĻ•ā§āĻ˛ā§‹āĻ°āĻžāĻ‡āĻĄā§‡āĻ° āĻœāĻ˛ā§€āĻ¯āĻŧ āĻĻā§āĻ°āĻŦāĻŖāĻ•ā§‡ āĻ¤āĻžāĻĒ āĻĻā§‡āĻ¯āĻŧāĻž āĻšāĻ˛ā§‡ āĻ•āĻŋ āĻ˜āĻŸā§‡?
    1. Formation of phenol
    2. Formation of nitrobenzene
    3. Formation of diphenyl
    4. Formation of phenylhydrazine

    Ans. Formation of phenol

  27. HCHO āĻ…āĻŖā§āĻ¤ā§‡ āĻ•āĻžāĻ°ā§āĻŦāĻ¨ā§‡āĻ° āĻšāĻžāĻ‡āĻŦā§āĻ°āĻŋāĻĄāĻžāĻ‡āĻœā§‡āĻļāĻ¨ āĻšāĻ˛-
    1. sp
    2. \(\mathrm{sp}^{2}\)
    3. \(\mathrm{sp}^{3}\)
    4. None

    Ans. \(\mathrm{sp}^{2}\)

  28. āĻŽāĻžāĻ°āĻ•āĻžāĻ°ā§€ (II) āĻ…āĻ•ā§āĻ¸āĻžāĻ‡āĻĄ āĻ¤āĻžāĻĒā§‡ āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ…āĻ¨ā§āĻ¸āĻžāĻ°ā§‡ āĻ­āĻžāĻ™ā§āĻ—āĻ˛ā§‡ āĻ āĻĒā§āĻ°āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻŸāĻŋāĻ° āĻ¸āĻžāĻŽā§āĻ¯āĻžāĻ‚āĻ•āĻ•ā§‡ āĻ•āĻŋāĻ­āĻžāĻŦā§‡ āĻĒā§āĻ°āĻ•āĻžāĻļ āĻ•āĻ°āĻž āĻ¯āĻžāĻ¯āĻŧ?
    \(2 \mathrm{HgO}(\mathrm{s}) \rightleftharpoons 2 \mathrm{Hg}(l)+\mathrm{O}_{2}(\mathrm{~g})\)

    1. \(\mathrm{K}=\frac{[\mathrm{Hg}]^{2}\left[\mathrm{O}_{2}\right]}{[\mathrm{HgO}]^{2}}\)
    2. \(\mathrm{K}=\frac{[\mathrm{Hg}]\left[\mathrm{O}_{2}\right]}{[\mathrm{HgO}]}\)
    3. \(\mathrm{K}=[\mathrm{Hg}]\left[\mathrm{O}_{2}\right]\)
    4. \(\mathrm{K}=\left[\mathrm{O}_{2}\right]\)

    Ans. \(\mathrm{K}=\left[\mathrm{O}_{2}\right]\)

  29. āĻ¨āĻŋāĻšā§‡āĻ° āĻ¨āĻŋāĻ‰āĻ•ā§āĻ˛āĻŋāĻ¯āĻŧāĻžāĻ° āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ¯āĻŧ X-āĻ•ā§‡ āĻ•āĻŋ āĻŦāĻ˛āĻž āĻ¯āĻžāĻ¯āĻŧ?
    \({ }_{7}^{14} \mathrm{~N}+\alpha \rightarrow { }_{8}^{17} \mathrm{~O}+\mathrm{X}\)
    1. Proton
    2. \(\beta\)-particle
    3. \(\gamma\)-ray
    4. Neutron

    Ans. Proton

  30. āĻĢā§‡āĻ¨āĻ˛ āĻ“ āĻāĻ˛āĻ•ā§‹āĻšāĻ˛ āĻ‰āĻ­āĻ¯āĻŧā§‡āĻ° āĻœāĻ¨ā§āĻ¯ āĻ¨āĻŋāĻŽā§āĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¸āĻ¤ā§āĻ¯?
    1. \(\mathrm{PCl}_{5}\) āĻāĻ° āĻ¸āĻžāĻĨā§‡ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ•āĻ°ā§‡
    2. āĻ°āĻžāĻ‡āĻŽāĻžāĻ° āĻŸāĻžāĻ‡āĻŽā§āĻ¯āĻžāĻ¨ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻĒā§āĻ°āĻĻāĻ°ā§āĻļāĻ¨ āĻ•āĻ°ā§‡
    3. āĻĒāĻžāĻ¨āĻŋāĻ° āĻ¸āĻžāĻĨā§‡ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ•āĻ°ā§‡
    4. āĻ˛ā§āĻ•āĻžāĻ¸ āĻŦāĻŋāĻ•āĻžāĻ°āĻ•ā§‡āĻ° āĻ¸āĻžāĻĨā§‡ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ•āĻ°ā§‡

    Ans. \(\mathrm{PCl}_{5}\) āĻāĻ° āĻ¸āĻžāĻĨā§‡ āĻŦāĻŋāĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻž āĻ•āĻ°ā§‡

āĻ—āĻŖāĻŋāĻ¤

  1. (3, -1) āĻāĻŦāĻ‚ (5, 2) āĻŦāĻŋāĻ¨ā§āĻĻā§āĻĻā§āĻŦāĻ¯āĻŧā§‡āĻ° āĻ¸āĻ‚āĻ¯ā§‡āĻžāĻ—āĻ•āĻžāĻ°ā§€ āĻ¸āĻ°āĻ˛āĻ°ā§‡āĻ–āĻžāĻ•ā§‡ 3:4 āĻ…āĻ¨ā§āĻĒāĻžāĻ¤ā§‡ āĻŦāĻšāĻŋāĻƒāĻ¸ā§āĻĨāĻ­āĻžāĻŦā§‡ āĻŦāĻŋāĻ­āĻ•ā§āĻ¤āĻ•āĻžāĻ°ā§€ āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ° āĻ¸ā§āĻĨāĻžāĻ¨āĻžāĻ™ā§āĻ•-

    1. \(\left(\frac{14}{3}, 3\right)\)
    2. \(\left(\frac{27}{7}, \frac{2}{7}\right)\)
    3. \(\left(\frac{27}{4}, \frac{4}{3}\right)\)
    4. āĻ•ā§‹āĻ¨ā§‹āĻŸāĻŋāĻ‡ āĻ¨ā§Ÿ

    Ans. āĻ•ā§‹āĻ¨ā§‹āĻŸāĻŋāĻ‡ āĻ¨ā§Ÿ

  2. \(f(x)=\sqrt{x^{2}-5 x+6}\) āĻĢāĻžāĻ‚āĻļāĻ¨ā§‡āĻ° āĻĄā§‹āĻŽā§‡āĻ‡āĻ¨ āĻāĻŦāĻ‚ āĻ°ā§‡āĻžā§āĻœ āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡-
    1. \(x \leq 2,3 \leq x\) and \(y \geq 0\)
    2. \(2 \leq x \leq 3\) and \(y \geq 0\)
    3. \(x \geq 3\) and \(y>0\)
    4. \(x \leq 2, x \geq 3\) and \(y>0\)

    Ans. \(x \leq 2,3 \leq x\) and \(y \geq 0\)

  3. 32 ft/sec āĻ†āĻĻāĻŋāĻŦā§‡āĻ— āĻāĻŦāĻ‚ āĻ­ā§‚āĻŽāĻŋāĻ° āĻ¸āĻžāĻĨā§‡ \(30^{\circ}\) āĻ•ā§‹āĻŖā§‡ āĻŦāĻ¸ā§āĻ¤ā§ āĻ¨āĻŋāĻ•ā§āĻˇā§‡āĻĒ āĻ•āĻ°āĻž āĻšāĻ˛ā§‹āĨ¤ āĻ‡āĻšāĻžāĻ° āĻ†āĻ¨ā§āĻ­ā§‚āĻŽāĻŋāĻ• āĻĒāĻžāĻ˛ā§āĻ˛āĻž-

    1. \(16 \mathrm{ft}\)
    2. \(21 \sqrt{3}\) ft
    3. \(32 \mathrm{ft}\)
    4. \(16 \sqrt{3} \mathrm{ft}\)

    Ans. \(16 \sqrt{3} \mathrm{ft}\)

  4. If \(x^{n}+y^{n}=a^{n}\) then \(\frac{d y}{d x}=?\)

    1. \(\left(\frac{x}{y}\right)^{n}\)
    2. \(\left(-\frac{x}{y}\right)^{n}\)\(\left(-\frac{x}{y}\right)^{n}\)
    3. \(-\left(\frac{x}{y}\right)^{n-1}\)
    4. \(+\left(\frac{x}{y}\right)^{n-1}\)

    Ans. \(-\left(\frac{x}{y}\right)^{n-1}\)

  5. \(\cot \theta+\sqrt{3}=2 \operatorname{cosec} \theta\) āĻ¸āĻŽā§€āĻ•āĻ°āĻŖā§‡āĻ° āĻ¸āĻŽāĻžāĻ§āĻžāĻ¨-
    1. \(\theta=2 \mathrm{n} \pi-\frac{\pi}{3}\)
    2. \(\theta=2 n \pi+\frac{\pi}{3}\)
    3. \(\theta=2 \mathrm{n} \pi+\frac{\pi}{6}\)
    4. \(\theta=2 n \pi-\frac{\pi}{6}\)

    Ans. \(\theta=2 n \pi+\frac{\pi}{3}\)

  6. \(\left(\begin{array}{ll}\cos \theta & \sin \theta \\ -\sin \theta & \cos \theta\end{array}\right)\) āĻāĻ° āĻŦāĻŋāĻĒāĻ°ā§€āĻ¤ āĻŽā§āĻ¯āĻžāĻŸā§āĻ°āĻŋāĻ•ā§āĻ¸-

    1. \(\left(\begin{array}{ll}\cos \theta & -\sin \theta \\ -\sin \theta & \cos \theta\end{array}\right)\)
    2. \(\left(\begin{array}{ll}\cos \theta & -\sin \theta \\ \sin \theta & -\cos \theta\end{array}\right)\)
    3. \(\left(\begin{array}{ll}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta\end{array}\right)\)
    4. \(\left(\begin{array}{ll}\cos \theta & \sin \theta \\ \sin \theta & \cos \theta\end{array}\right)\)

    Ans. \(\left(\begin{array}{ll}\cos \theta & -\sin \theta \\ \sin \theta & \cos \theta\end{array}\right)\)

  7. 4 āĻœāĻ¨ āĻŽāĻšāĻŋāĻ˛āĻžāĻ¸āĻš 10 āĻŦā§āĻ¯āĻ•ā§āĻ¤āĻŋāĻ° āĻŽāĻ§ā§āĻ¯ āĻĨā§‡āĻ•ā§‡ 5 āĻœāĻ¨ā§‡āĻ° āĻāĻ•āĻŸāĻŋ āĻ•āĻŽāĻŋāĻŸāĻŋ āĻ—āĻ āĻ¨ āĻ•āĻ°āĻ¤ā§‡ āĻšāĻŦā§‡ āĻ¯āĻžāĻ¤ā§‡ āĻ…āĻ¨ā§āĻ¤āĻ¤ āĻāĻ•āĻœāĻ¨ āĻŽāĻšāĻŋāĻ˛āĻž āĻ…āĻ¨ā§āĻ¤āĻ°ā§āĻ­ā§‚āĻ•ā§āĻ¤ āĻĨāĻžāĻ•āĻŦā§‡āĨ¤ āĻ•āĻ¤ āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āĻ¨ āĻĒā§āĻ°āĻ•āĻžāĻ°ā§‡ āĻ āĻ•āĻŽāĻŋāĻŸāĻŋ āĻ—āĻ āĻ¨ āĻ•āĻ°āĻž āĻ¯ā§‡āĻ¤ā§‡ āĻĒāĻžāĻ°ā§‡?
    1. 1440
    2. 246
    3. 120
    4. 60

    Ans. 246

  8. \(\left|\begin{array}{lll}0 & 3 & 2 x+7 \\ 2 & 7 x & 9+5 x \\ 0 & 0 & 2 x+5\end{array}\right|=0\) āĻšāĻ˛ā§‡, x āĻāĻ° āĻŽāĻžāĻ¨
    1. \(-\frac{9}{2}\)
    2. \(-\frac{7}{2}\)
    3. \(-\frac{5}{2}\)
    4. 0

    Ans. \(-\frac{5}{2}\)

  9. \(\arctan \left\{\sin \left(\arccos \frac{\sqrt{2}}{\sqrt{3}}\right)\right\}\) āĻ¸āĻŽāĻžāĻ¨
    1. \(\frac {\pi}{2}\)
    2. \(\frac {\pi}{3}\)
    3. \(\frac {\pi}{4}\)
    4. \(\frac {\pi}{6}\)

    Ans. \(\frac {\pi}{6}\)

  10. āĻ•ā§‹āĻ¨ā§‹ āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ¤ā§‡ P āĻāĻŦāĻ‚ 2P āĻŽāĻžāĻ¨ā§‡āĻ° āĻĻā§āĻ‡āĻŸāĻŋ āĻŦāĻ˛ āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻļā§€āĻ˛āĨ¤ āĻĒā§āĻ°āĻĨāĻŽ āĻŦāĻ˛āĻŸāĻŋāĻ•ā§‡ āĻĻā§āĻŦāĻŋāĻ—ā§āĻŖ āĻ•āĻ°ā§‡ āĻĻā§āĻŦāĻŋāĻ¤ā§€āĻ¯āĻŧāĻŸāĻŋāĻ° āĻŽāĻžāĻ¨ ā§Ē āĻāĻ•āĻ• āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻ•āĻ°āĻž āĻšāĻ˛ā§‡, āĻ¤āĻžāĻĻā§‡āĻ° āĻ˛āĻŦā§āĻ§āĻŋāĻ° āĻĻāĻŋāĻ• āĻ…āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻŋāĻ¤ āĻĨāĻžāĻ•ā§‡āĨ¤ P āĻāĻ° āĻŽāĻžāĻ¨-
    1. 1
    2. 2
    3. 4
    4. 8

    Ans. 4

  11. \(\mathbf{y}=-\sqrt{\mathbf{a}^{2}-\mathbf{x}^{2}}\) āĻ“ \(\mathbf{y}=\mathbf{0}\) āĻĻā§āĻŦāĻžāĻ°āĻž āĻ†āĻŦāĻĻā§āĻ§ āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°ā§‡āĻ° āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°āĻĢāĻ˛-
    1. \(\frac{1}{4} \pi \mathrm{a}^{2}\)
    2. \(\frac{1}{2} \pi \mathrm{a}^{2}\)
    3. \(\pi \mathrm{a}^{2}\)
    4. \(\frac{1}{2} \mathrm{a}^{2}\)

    Ans. \(\frac{1}{2} \pi \mathrm{a}^{2}\)

  12. 101101 āĻāĻ° āĻ¸āĻžāĻĨā§‡ āĻ•ā§‹āĻ¨ āĻ¨ā§āĻ¯ā§‚āĻ¨āĻ¤āĻŽ āĻĻā§āĻŦāĻŋāĻŽāĻŋāĻ• āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻ¯ā§‡āĻžāĻ— āĻ•āĻ°āĻ˛ā§‡ āĻ¯ā§‡āĻžāĻ—āĻĢāĻ˛ 16 āĻĻā§āĻŦāĻžāĻ°āĻž āĻŦāĻŋāĻ­āĻžāĻœā§āĻ¯ āĻšāĻŦā§‡?
    1. 10011
    2. 111
    3. 110
    4. 11

    Ans. 11

  13. \(-\frac{1}{2}-\frac{1}{2.2^{2}}-\frac{1}{3.2^{3}}-\frac{1}{4.2^{4}}-\ldots \ldots\) āĻ§āĻžāĻ°āĻžāĻŸāĻŋāĻ° āĻ¸āĻŽāĻˇā§āĻŸāĻŋ-
    1. -2 ln 2
    2. – ln 2
    3. -2 e
    4. – e

    Ans. – ln 2

  14. āĻŦāĻžāĻ¸ā§āĻ¤āĻŦ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻžāĻ¯āĻŧ \(\frac{1}{|3 x+1|} \geq 5\) āĻ…āĻ¸āĻŽāĻ¤āĻžāĻŸāĻŋāĻ° āĻ¸āĻŽāĻžāĻ§āĻžāĻ¨-
    1. \(\left(-\frac{2}{3},-\frac{1}{3}\right) \cup\left(-\frac{1}{3},-\frac{4}{5}\right)\)
    2. \(\left[-\frac{2}{5},-\frac{1}{3}\right) \cup\left(-\frac{1}{3},-\frac{4}{15}\right]\)
    3. \(\left(-\frac{2}{3},-\frac{4}{15}\right)\)
    4. None

    Ans. \(\left[-\frac{2}{5},-\frac{1}{3}\right) \cup\left(-\frac{1}{3},-\frac{4}{15}\right]\)

  15. \(\underset {x \rightarrow 0} {\overset { } {\mathrm lim} } \frac{cos x-1}{ x^{2}}=?\)

    1. \(-1\)
    2. \(-\frac{1}{2}\)
    3. \(\frac{1}{2}\)
    4. 1

    Ans. \(-\frac{1}{2}\)

  16. (3, -1) āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ—āĻžāĻŽā§€ āĻāĻŦāĻ‚ \(x^{2}+y^{2}-6 x+8 y=0\) āĻŦā§ƒāĻ¤ā§āĻ¤ā§‡āĻ° āĻ¸āĻžāĻĨā§‡ āĻāĻ•āĻ•ā§‡āĻ¨ā§āĻĻā§āĻ°āĻŋāĻ• āĻŦā§ƒāĻ¤ā§āĻ¤ā§‡āĻ° āĻ¸āĻŽā§€āĻ•āĻ°āĻŖ-
    1. \(x^{2}+y^{2}+6 x-8 y+16=0\)
    2. \(x^{2}+y^{2}-6 x-8 y-16=0\)
    3. \(x^{2}+y^{2}-6 x+8 y+16=0\)
    4. \(x^{2}+y^{2}-6 x-8 y+16=0\)

    Ans. \(x^{2}+y^{2}-6 x+8 y+16=0\)

  17. sinA + cosA = sinB + cosB āĻšāĻ˛ā§‡, A + B = ?

    1. \(\pi\)
    2. \(\pi / 2\)
    3. \(2\pi\)
    4. \(\pi/4\)

    Ans. \(\pi / 2\)

  18. \(\left(2 x^{2}-\frac{1}{4 x}\right)^{11}\) āĻāĻ° āĻŦāĻŋāĻ¸ā§āĻ¤ā§ƒāĻ¤āĻŋāĻ¤ā§‡ \(\mathbf{x}^{7}\) āĻāĻ° āĻ¸āĻšāĻ—-
    1. \(-\frac{231}{8}\)
    2. 231
    3. \(\frac{231}{4}\)
    4. \(\frac{231}{8}\)

    Ans. \(-\frac{231}{8}\)

  19. \(z_{1}=2+i\) āĻāĻŦāĻ‚ \(z_{2}=3+i\) āĻšāĻ˛ā§‡, \(\mathbf{z}_{1} \overline{\mathbf{z}}_{2}\) āĻāĻ° āĻŽāĻĄā§āĻ˛āĻžāĻ¸-
    1. 6
    2. \(5 \sqrt{2}\)
    3. 7
    4. \(5 \sqrt{3}\)

    Ans. \(5 \sqrt{2}\)

  20. āĻĒā§‚āĻ°ā§āĻŖāĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻ¸āĻšāĻ—āĻ¸āĻš āĻĻā§āĻŦāĻŋāĻŽāĻžāĻ¤ā§āĻ°āĻŋāĻ• āĻ¸āĻŽā§€āĻ•āĻ°āĻŖ, āĻ¯āĻžāĻ° āĻāĻ•āĻŸāĻŋ āĻŽā§‚āĻ˛ \(\sqrt{-5}-1\)
    1. \(x^{2}+2 x+6=0\)
    2. \(x^{2}+x+3=0\)
    3. \(x^{2}+2 x-6=0\)
    4. \(x^{2}+x-3=0\)

    Ans. \(x^{2}+2 x+6=0\)

  21. āĻāĻ•āĻŸāĻŋ āĻ†āĻ¯āĻŧāĻ¤āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°ā§‡āĻ° āĻĻā§ˆāĻ°ā§āĻ˜ā§āĻ¯ 20% āĻŦā§ƒāĻĻā§āĻ§āĻŋ āĻāĻŦāĻ‚ āĻĒā§āĻ°āĻ¸ā§āĻĨ 20% āĻšā§āĻ°āĻžāĻ¸ āĻ•āĻ°āĻ˛ā§‡ āĻāĻ° āĻ•ā§āĻˇā§‡āĻ¤ā§āĻ°āĻĢāĻ˛ā§‡āĻ° āĻļāĻ¤āĻ•āĻ°āĻž āĻĒāĻ°āĻŋāĻŦāĻ°ā§āĻ¤āĻ¨-
    1. decreases by 4%
    2. increases by 4%
    3. increases by 5%
    4. remains unchanged

    Ans. decreases by 4%

  22. x + y = 3 āĻāĻŦāĻ‚ y – x = 1 āĻ¸āĻ°āĻ˛āĻ°ā§‡āĻ–āĻžāĻĻā§āĻŦāĻ¯āĻŧā§‡āĻ° āĻ›ā§‡āĻĻāĻŦāĻŋāĻ¨ā§āĻĻā§āĻ—āĻžāĻŽā§€, x āĻ…āĻ•ā§āĻˇā§‡āĻ° āĻ¸āĻŽāĻžāĻ¨ā§āĻ¤āĻ°āĻžāĻ˛ āĻ¸āĻŽā§€āĻ•āĻ°āĻŖ-
    1. \( y=2 \)
    2. \( 2y=2 \)
    3. \( x=1 \)
    4. \( x+3=0 \)

    Ans. \( y=2 \)

  23. āĻāĻ•āĻ• āĻŦā§āĻ¯āĻžāĻ¸āĻžāĻ°ā§āĻ§ā§‡āĻ° āĻŦā§ƒāĻ¤ā§āĻ¤ā§‡ āĻ…āĻ˛āĻŋāĻ–āĻŋāĻ¤ āĻāĻ•āĻŸāĻŋ āĻ¸āĻŽāĻŦāĻžāĻšā§ āĻ¤ā§āĻ°āĻŋāĻ­ā§āĻœā§‡āĻ° āĻŦāĻžāĻšā§āĻ° āĻĻā§ˆāĻ°ā§āĻ˜ā§āĻ¯-
    1. \(\frac{3}{2}\) units
    2. \(\frac{\sqrt{3}}{2}\) units
    3. \(\sqrt{3}\) units
    4. 1 units

    Ans. \(\sqrt{3}\) units

  24. āĻ§āĻ¨āĻžāĻ¤ā§āĻŽāĻ• x āĻāĻ° āĻœāĻ¨ā§āĻ¯ \(\mathbf{F}(\mathbf{x})=\int_{1}^{x} \ln t \mathbf{d} \mathbf{t}\) āĻšāĻ˛ā§‡, \(\mathbf{F}^{\prime}(\mathbf{x})=?\)
    1. \(\frac{1}{x}\)
    2. ln x
    3. x ln x
    4. x ln x – x

    Ans. ln x

  25. 1, 2, 3, 4, 5, 6 āĻ“ 7 āĻĨā§‡āĻ•ā§‡ āĻĒā§āĻ¨āĻ°āĻžāĻŦā§ƒāĻ¤ā§āĻ¤āĻŋ āĻ›āĻžāĻĄāĻŧāĻž āĻ¤āĻŋāĻ¨ āĻ…āĻ™ā§āĻ•ā§‡āĻ° āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻ—āĻ āĻ¨ āĻ•āĻ°āĻž āĻšāĻ˛ā§‡, āĻ•āĻ¯āĻŧāĻŸāĻŋ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻžāĻ° āĻŽāĻžāĻ¨ 100 āĻĨā§‡āĻ•ā§‡ 500 āĻāĻ° āĻŽāĻ§ā§āĻ¯ā§‡?
    1. 240
    2. 60
    3. 120
    4. 480

    Ans. 120

  26. ABC āĻ¤ā§āĻ°āĻŋāĻ­ā§āĻœā§‡āĻ° BC, CA āĻ“ AB āĻŦāĻžāĻšā§āĻ° āĻŽāĻ§ā§āĻ¯āĻŦāĻŋāĻ¨ā§āĻĻā§āĻ—ā§āĻ˛ā§‹ āĻ¯āĻĨāĻžāĻ•ā§āĻ°āĻŽā§‡ D,E āĻ“ F āĻšāĻ˛ā§‡-
    1. \(\overrightarrow{\mathrm{AD}}=\overrightarrow{\mathrm{AB}}+\overrightarrow{\mathrm{BC}}\)
    2. \(\overrightarrow{\mathrm{AD}}=\overrightarrow{\mathrm{AF}}+\overrightarrow{\mathrm{AE}}\)
    3. \(\overrightarrow{\mathrm{AD}}=\overrightarrow{\mathrm{AB}}+\overrightarrow{\mathrm{AC}}\)
    4. \(\overrightarrow{\mathrm{AD}}=\overrightarrow{\mathrm{BE}}+\overrightarrow{\mathrm{CF}}\)

    Ans. \(\overrightarrow{\mathrm{AD}}=\overrightarrow{\mathrm{AF}}+\overrightarrow{\mathrm{AE}}\)

  27. āĻ¯āĻĻāĻŋ f(x) = (x – 2) (1-x) āĻšāĻ¯āĻŧ, āĻ¤āĻŦā§‡ f(f(3)) āĻāĻ° āĻŽāĻžāĻ¨-
    1. 9
    2. -12
    3. 12
    4. 8

    Ans. -12

  28. 1, 0, 2 āĻĻā§āĻŦāĻžāĻ°āĻž āĻ—āĻ āĻŋāĻ¤ āĻ¤āĻŋāĻ¨ āĻ…āĻ™ā§āĻ•āĻŦāĻŋāĻļāĻŋāĻˇā§āĻŸ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻžāĻ—ā§āĻ˛ā§‹ āĻšāĻ¤ā§‡ āĻĻā§ˆāĻŦāĻšāĻ¯āĻŧāĻ¨ āĻĒāĻĻā§āĻ§āĻ¤āĻŋāĻ¤ā§‡ āĻāĻ•āĻŸāĻŋ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž āĻ¨ā§‡āĻ¯āĻŧāĻž āĻšāĻ˛ā§‡ āĻ¸āĻ‚āĻ–ā§āĻ¯āĻžāĻŸāĻŋ 10 āĻĻā§āĻŦāĻžāĻ°āĻž āĻŦāĻŋāĻ­āĻžāĻœā§āĻ¯ āĻšāĻ“āĻ¯āĻŧāĻžāĻ° āĻ¸āĻŽā§āĻ­āĻžāĻŦāĻ¨āĻž-
    1. \(\frac{1}{2}\)
    2. \(\frac{1}{3}\)
    3. \(\frac{2}{9}\)
    4. \(\frac{1}{6}\)

    Ans. \(\frac{1}{2}\)

  29. \(x^{2}-4 x+12 y-40=0\) āĻĒāĻ°āĻžāĻŦā§ƒāĻ¤ā§āĻ¤ā§‡āĻ° āĻ‰āĻĒāĻ•ā§‡āĻ¨ā§āĻĻā§āĻ°āĻŋāĻ• āĻ˛āĻŽā§āĻŦā§‡āĻ° āĻĻā§ˆāĻ°ā§āĻ˜ā§āĻ¯-
    1. 12
    2. 8
    3. 6
    4. 4

    Ans. 12

  30. x āĻāĻ° āĻ•ā§‹āĻ¨ āĻŽāĻžāĻ¨ā§‡āĻ° āĻœāĻ¨ā§āĻ¯ \(y=x+\frac{1}{x}\) āĻŦāĻ•ā§āĻ°āĻ°ā§‡āĻ–āĻžāĻŸāĻŋāĻ° āĻĸāĻžāĻ˛ āĻļā§‚āĻ¨ā§āĻ¯ āĻšāĻŦā§‡?
    1. \(\pm \frac{3}{2}\)
    2. \(\pm 2\)
    3. 1
    4. \(\pm 1\)

    Ans. \(\pm 1\)

āĻœā§€āĻŦāĻŦāĻŋāĻœā§āĻžāĻžāĻ¨

  1. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋāĻ° āĻ¸āĻžā§āĻšāĻŋāĻ¤ āĻ–āĻžāĻĻā§āĻ¯ āĻĢā§āĻ˛ā§‹āĻ°āĻŋāĻĄāĻŋāĻ¯āĻŧāĻžāĻ¨ āĻ¸ā§āĻŸāĻžāĻ°ā§āĻš?

    1. Spirogyra
    2. Navicula
    3. Polysiphonia
    4. Sargassum

    Ans. Polysiphonia

  2. Jellyfish āĻ•ā§‹āĻ¨ āĻĒāĻ°ā§āĻŦā§‡āĻ° āĻĒā§āĻ°āĻžāĻŖā§€?
    1. Annelida
    2. Cnidaria
    3. Porifera
    4. Arthropoda

    Ans. Cnidaria

  3. āĻŸāĻŋāĻ¸ā§āĻ¯ā§ āĻ•āĻžāĻ˛āĻšāĻžāĻ° āĻĒā§āĻ°āĻ¯ā§āĻ•ā§āĻ¤āĻŋāĻ° āĻœāĻ¨āĻ• āĻ•ā§‡?
    1. āĻŽā§‡āĻ¨ā§āĻĄā§‡āĻ˛
    2. āĻšāĻžāĻšāĻŋāĻ¨āĻ¸āĻ¨
    3. āĻ˛ā§āĻ¯āĻžāĻŽāĻžāĻ°ā§āĻ•
    4. āĻšā§āĻ¯āĻžāĻŦāĻžāĻ°āĻ˛ā§āĻ¯āĻžāĻ¨ā§āĻĄ

    Ans. āĻšā§āĻ¯āĻžāĻŦāĻžāĻ°āĻ˛ā§āĻ¯āĻžāĻ¨ā§āĻĄ

  4. āĻ¸āĻ‚āĻ•ā§āĻ°āĻŽāĻŖāĻ•ā§āĻˇāĻŽ āĻ­āĻžāĻ‡āĻ°āĻžāĻ¸ āĻ•āĻŖāĻžāĻ•ā§‡ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧ-
    1. Nucleocapside
    2. Virions
    3. Capsid
    4. Capsomere

    Ans. Virions

  5. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ†āĻĻāĻŋāĻ•ā§‹āĻˇ -āĻāĻ° āĻ‰āĻĻāĻžāĻšāĻ°āĻŖ?
    1. Saccharomyces
    2. Penicillium
    3. Agaricus
    4. Bacillus

    Ans. Bacillus

  6. Species Plantarum’-āĻāĻ° āĻ°āĻšāĻ¯āĻŧāĻŋāĻ¤āĻž āĻšāĻ˛ā§‡āĻ¨-
    1. āĻœāĻ°ā§āĻœ āĻŦā§‡āĻ¨āĻĨāĻžāĻŽ
    2. āĻ•ā§āĻ¯āĻžāĻ°ā§‹āĻ˛āĻžāĻ¸ āĻ˛āĻŋāĻ¨āĻŋāĻ¯āĻŧāĻžāĻ¸
    3. āĻ…ā§āĻ¯āĻžāĻĄāĻ˛āĻĢ āĻāĻ™ā§āĻ—āĻ˛āĻžāĻ°
    4. āĻŽāĻžāĻ‡āĻ•ā§‡āĻ˛ āĻ…ā§āĻ¯āĻžāĻĄāĻžāĻ¨āĻ¸āĻ¨

    Ans. āĻ•ā§āĻ¯āĻžāĻ°ā§‹āĻ˛āĻžāĻ¸ āĻ˛āĻŋāĻ¨āĻŋāĻ¯āĻŧāĻžāĻ¸

  7. Pteris-āĻāĻ° āĻ—ā§āĻ¯āĻžāĻŽā§‡āĻŸā§‹āĻĢāĻžāĻ‡āĻŸāĻ•ā§‡ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧ-
    1. āĻ—ā§āĻ¯āĻžāĻŽā§‡āĻŸā§‹āĻĢā§‹āĻ°
    2. āĻ¸ā§āĻŸā§‹āĻŽāĻŋāĻ¯āĻŧāĻžāĻŽ
    3. āĻĒā§āĻ°ā§‹āĻĨā§āĻ¯āĻžāĻ˛āĻžāĻ¸
    4. āĻĒā§āĻ°ā§‹āĻŸā§‹āĻ¨ā§‡āĻŽāĻž

    Ans. āĻĒā§āĻ°ā§‹āĻĨā§āĻ¯āĻžāĻ˛āĻžāĻ¸

  8. Malvaceae āĻ—ā§‹āĻ¤ā§āĻ°ā§‡āĻ° āĻĒā§āĻ‚āĻ¸ā§āĻ¤āĻŦāĻ•ā§‡āĻ° āĻ—āĻ āĻ¨ āĻ•āĻŋ?
    1. āĻŸā§‡āĻŸā§āĻ°āĻžāĻĄāĻŋāĻ¨ā§‡āĻŽāĻžāĻ¸
    2. āĻĻā§āĻŦāĻŋāĻ—ā§āĻšā§āĻ›āĻ•
    3. āĻāĻ•āĻ—ā§āĻšā§āĻ›āĻ•
    4. āĻĻāĻ˛āĻ˛āĻ—ā§āĻ¨

    Ans. āĻāĻ•āĻ—ā§āĻšā§āĻ›āĻ•

  9. āĻ…āĻ¸āĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻĒā§āĻ°āĻ•āĻŸāĻ¤āĻž āĻšāĻ˛ā§‡ āĻŽāĻ¨ā§‹āĻšāĻžāĻ‡āĻŦā§āĻ°āĻŋāĻĄ āĻ•ā§āĻ°āĻ¸ā§‡āĻ° \(\mathbf{F}_{2}\) āĻœāĻ¨ā§āĻ¤ā§‡ āĻĢāĻŋāĻ¨ā§‹āĻŸāĻžāĻ‡āĻĒā§‡āĻ° āĻ…āĻ¨ā§āĻĒāĻžāĻ¤ āĻšāĻ¯āĻŧ-
    1. 3:1
    2. 9:3:3:1
    3. 12:3:1
    4. 1:2:1

    Ans. 1:2:1

  10. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋāĻ•ā§‡ āĻœā§€āĻŦāĻ¨ā§āĻ¤ āĻœā§€āĻŦāĻžāĻļā§āĻŽ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧ?
    1. Ficus
    2. Navicula
    3. Cycas
    4. Hibiscus

    Ans. Cycas

  11. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨ āĻ•ā§āĻˇā§āĻĻā§āĻ°āĻžāĻ™ā§āĻ—āĻŸāĻŋ āĻ—ā§āĻ°āĻžāĻ¨āĻžāĻŽ āĻ§āĻžāĻ°āĻŖ āĻ•āĻ°ā§‡?
    1. āĻ•ā§āĻ˛ā§‹āĻ°ā§‹āĻĒā§āĻ˛āĻžāĻ¸ā§āĻŸ
    2. āĻ°āĻžāĻ‡āĻŦā§‹āĻ¸ā§‹āĻŽ
    3. āĻ˛āĻžāĻ‡āĻ¸ā§‹āĻ¸ā§‹āĻŽ
    4. āĻŽāĻžāĻ‡āĻŸā§‹āĻ•āĻ¨ā§āĻĄā§āĻ°āĻŋāĻ¯āĻŧāĻž

    Ans. āĻ•ā§āĻ˛ā§‹āĻ°ā§‹āĻĒā§āĻ˛āĻžāĻ¸ā§āĻŸ

  12. āĻ•ā§‹āĻˇ āĻŦāĻŋāĻ­āĻžāĻœāĻ¨ā§‡āĻ° āĻ•ā§‹āĻ¨ āĻĒāĻ°ā§āĻ¯āĻžāĻ¯āĻŧā§‡ āĻ¸āĻŋāĻ¨ā§āĻ¯āĻžāĻĒāĻ¸āĻŋāĻ¸ āĻ˜āĻŸā§‡?
    1. āĻ˛ā§‡āĻĒā§āĻŸā§‹āĻŸāĻŋāĻ¨
    2. āĻœāĻžāĻ‡āĻ—ā§‹āĻŸāĻŋāĻ¨
    3. āĻĒā§āĻ¯āĻžāĻ•āĻžāĻ‡āĻŸāĻŋāĻ¨
    4. āĻĄāĻŋāĻĒā§āĻ˛ā§‹āĻŸāĻŋāĻ¨

    Ans. āĻœāĻžāĻ‡āĻ—ā§‹āĻŸāĻŋāĻ¨

  13. āĻĒāĻ°āĻŋāĻĒāĻ• āĻĒāĻ°ā§āĻ¯āĻžāĻ¯āĻŧā§‡ āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨ āĻ•ā§‹āĻˇā§‡ āĻ¨āĻŋāĻ‰āĻ•ā§āĻ˛āĻŋāĻ¯āĻŧāĻžāĻ¸ āĻĨāĻžāĻ•ā§‡ āĻ¨āĻž?
    1. āĻ¸āĻŋāĻ­āĻ¨āĻ˛
    2. āĻ¸ā§āĻŸā§‹āĻŽāĻžāĻŸāĻžāĻ˛ āĻ¸ā§‡āĻ˛
    3. āĻœāĻžāĻ‡āĻ˛ā§‡āĻŽ āĻĢāĻžāĻ‡āĻŦāĻžāĻ°
    4. āĻĢā§āĻ˛ā§‹āĻ¯āĻŧā§‡āĻŽ āĻĢāĻžāĻ‡āĻŦāĻžāĻ°

    Ans. āĻ¸āĻŋāĻ­āĻ¨āĻ˛

  14. āĻšāĻ•ā§ā§°ā§€āĻ¯āĻŧ āĻĢāĻŸā§‹āĻĢāĻ¸āĻĢāĻ°āĻžāĻ‡āĻ˛ā§‡āĻļāĻ¨ā§‡āĻ° āĻāĻ• āĻšāĻ•ā§āĻ°ā§‡ āĻ•āĻ¤āĻŸāĻŋ ATP āĻ¤ā§ˆāĻ°āĻŋ āĻšāĻ¯āĻŧ?
    1. 1
    2. 2
    3. 3
    4. 4

    Ans. 1

  15. āĻŽāĻžāĻ¨ā§āĻˇā§‡āĻ° āĻĻāĻļāĻŽ āĻ•āĻ°ā§‹āĻŸāĻŋāĻ• āĻ¸ā§āĻ¨āĻžāĻ¯āĻŧā§āĻ° āĻ¨āĻžāĻŽ āĻ•āĻŋ?
    1. āĻ…āĻĒāĻŸāĻŋāĻ•
    2. āĻ­ā§‡āĻ—āĻžāĻ¸
    3. āĻ…āĻĄāĻŋāĻŸāĻ°āĻŋ
    4. āĻšāĻžāĻ‡āĻĒā§‹āĻ—ā§āĻ˛ā§‹āĻ¸āĻžāĻ˛

    Ans. āĻ­ā§‡āĻ—āĻžāĻ¸

  16. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¨ā§‡āĻĢā§āĻ°āĻ¨ā§‡āĻ° āĻ…āĻ‚āĻļ āĻ¨āĻ¯āĻŧ?
    1. Renal pelvis
    2. Glomerulus
    3. Loop of Henle
    4. Collecting duct

    Ans. Renal pelvis

  17. āĻ•ā§‹āĻ¨ āĻšāĻ°āĻŽā§‹āĻ¨āĻŸāĻŋāĻ° āĻ‰ā§ŽāĻ¸ āĻĒāĻŋāĻŸā§āĻ‡āĻŸāĻžāĻ°āĻŋ āĻ—ā§āĻ°āĻ¨ā§āĻĨāĻŋ āĻ¨āĻ¯āĻŧ?
    1. Progesteron
    2. FSH
    3. LH
    4. Oxytocin

    Ans. Progesteron

  18. āĻ•ā§‹āĻ¨ āĻĒā§āĻ°āĻžāĻŖā§€āĻŸāĻŋ āĻ–āĻžāĻĻā§āĻ¯ āĻļāĻŋāĻ•āĻ˛ā§‡āĻ° āĻ¤ā§ƒāĻ¤ā§€āĻ¯āĻŧ āĻ¸ā§āĻ¤āĻ°ā§‡?
    1. Cow
    2. Tiger
    3. Caterpillar
    4. Elephant

    Ans. Tiger

  19. āĻŦā§ƒāĻ•ā§āĻ•ā§‡āĻ° āĻ•ā§‹āĻ¨ āĻ…āĻ‚āĻļā§‡ Filtration āĻšāĻ¯āĻŧ?
    1. āĻšā§‡āĻ¨āĻ˛āĻŋāĻ° āĻ˛ā§āĻĒ
    2. āĻ—ā§āĻ˛ā§‹āĻŽā§‡āĻ°ā§āĻ˛āĻžāĻ¸
    3. āĻ—ā§‹āĻĄāĻŧāĻžāĻĻā§‡āĻļā§€āĻ¯āĻŧ āĻĒā§āĻ¯āĻžāĻšāĻžāĻ¨ā§‹ āĻ¨āĻžāĻ˛āĻŋāĻ•āĻž
    4. āĻŽā§‚āĻ¤ā§āĻ°āĻĨāĻ˛āĻŋ

    Ans. āĻ—ā§āĻ˛ā§‹āĻŽā§‡āĻ°ā§āĻ˛āĻžāĻ¸

  20. āĻŽāĻžā§Ÿā§‹āĻ¸āĻŋāĻ¸ āĻ•ā§‹āĻˇ āĻŦāĻŋāĻ­āĻžāĻœāĻ¨ āĻ•ā§‹āĻĨāĻžāĻ¯āĻŧ āĻšāĻ¯āĻŧ?
    1. āĻĢā§āĻ¸āĻĢā§āĻ¸
    2. āĻ¯ā§ŒāĻ¨ āĻ•ā§‹āĻˇ
    3. āĻ¯āĻ•ā§ƒā§Ž
    4. āĻ…āĻ¸ā§āĻĨāĻŋ

    Ans. āĻ¯ā§ŒāĻ¨ āĻ•ā§‹āĻˇ

  21. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋāĻ•ā§‡ āĻŽāĻžāĻ¸ā§āĻŸāĻžāĻ° āĻ—ā§āĻ˛ā§āĻ¯āĻžāĻ¨ā§āĻĄ āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧ?
    1. Pituitary Gland
    2. Thyroid Gland
    3. Parotid Gland
    4. Lymph Gland

    Ans. Pituitary Gland

  22. āĻ•ā§‹āĻ¨ āĻ°āĻ•ā§āĻ¤ā§‡āĻ° āĻ—ā§āĻ°ā§āĻĒāĻ•ā§‡ “Universal Donor” āĻŦāĻ˛āĻž āĻšāĻ¯āĻŧ?
    1. AB
    2. B
    3. O
    4. A

    Ans. O

  23. āĻŽāĻžāĻ¨ā§āĻˇā§‡āĻ° āĻ…āĻŸā§‹āĻ¸ā§‹āĻŽ āĻ•āĻ¤ā§‹ āĻœā§‹āĻĄāĻŧāĻž?
    1. 44
    2. 23
    3. 24
    4. 22

    Ans. 22

  24. Platypus āĻ•ā§‹āĻĨāĻžāĻ¯āĻŧ āĻĒāĻžāĻ“āĻ¯āĻŧāĻž āĻ¯āĻžāĻ¯āĻŧ?
    1. Australia
    2. Oriental Region
    3. Africa
    4. Bangladesh

    Ans. Australia

  25. āĻ•ā§‹āĻ˛āĻžāĻœā§‡āĻ¨ āĻāĻ• āĻ§āĻ°āĻ¨ā§‡āĻ°-
    1. āĻļāĻ°ā§āĻ•āĻ°āĻž
    2. āĻ†āĻŽāĻŋāĻˇ
    3. āĻ–āĻ¨āĻŋāĻœ āĻĒāĻĻāĻžāĻ°ā§āĻĨ
    4. āĻšāĻ°ā§āĻŦāĻŋ

    Ans. āĻ†āĻŽāĻŋāĻˇ

  26. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ•āĻžāĻ˛āĻŽā§‡āĻ˜ā§‡āĻ° āĻŦā§ˆāĻœā§āĻžāĻžāĻ¨āĻŋāĻ• āĻ¨āĻžāĻŽ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. Andrographis paniculata
    2. Bacopa monnieri
    3. Centella asiatica
    4. Ocimum sanctum

    Ans. Andrographis paniculata

  27. Amoeba āĻāĻ° āĻšāĻ˛āĻ¨ āĻ…āĻ™ā§āĻ—ā§‡āĻ° āĻ¨āĻžāĻŽ āĻ•āĻŋ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻŽāĻžāĻ‡āĻ•ā§āĻ°ā§‹āĻ­āĻŋāĻ˛āĻžāĻ‡
    2. āĻ¸āĻŋāĻ“āĻĄā§‹āĻĒāĻĒāĻžāĻĄāĻŋāĻ¯āĻŧāĻž
    3. āĻ¸āĻŋāĻ˛āĻŋāĻ¯āĻŧāĻž
    4. āĻĢā§āĻ˛āĻžāĻœā§‡āĻ˛āĻž

    Ans. āĻ¸āĻŋāĻ“āĻĄā§‹āĻĒāĻĒāĻžāĻĄāĻŋāĻ¯āĻŧāĻž

  28. āĻ•ā§‹āĻ¨ āĻĒā§āĻ°āĻžāĻŖā§€ āĻ†āĻŽāĻžāĻļāĻ¯āĻŧ āĻ¸ā§ƒāĻˇā§āĻŸāĻŋ āĻ•āĻ°ā§‡?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. Wuchereria bancrofti
    2. Aedes
    3. Entamoeba
    4. Ascaris

    Ans. Entamoeba

  29. āĻ•ā§‡ āĻ•āĻ¨ā§āĻŸāĻŋāĻ¨ā§‡āĻ¨ā§āĻŸāĻžāĻ˛ āĻĄā§āĻ°āĻŋāĻĢāĻŸ āĻ¸āĻŽā§āĻĒāĻ°ā§āĻ•ā§‡ āĻ†āĻ§ā§āĻ¨āĻŋāĻ• āĻ§āĻžāĻ°āĻŖāĻž āĻĻā§‡āĻ¨?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻ“āĻ¯āĻŧā§‡āĻœāĻ¨āĻžāĻ°
    2. āĻĄāĻžāĻ°āĻ‰āĻ‡āĻ¨
    3. āĻĢā§āĻ˛ā§‡āĻŸāĻžāĻ°
    4. āĻŦā§‡āĻ•āĻ¨

    Ans. āĻ“āĻ¯āĻŧā§‡āĻœāĻ¨āĻžāĻ°

  30. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ—ā§āĻ°āĻŋāĻ¨ āĻšāĻžāĻ‰āĻ¸ āĻ—ā§āĻ¯āĻžāĻ¸ āĻ¨āĻ¯āĻŧ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. \(\mathrm{SO}_{2}\)
    2. \(\mathrm{CH}_{4}\)
    3. \(\mathrm{CO}_{2}\)
    4. \(\mathrm{H}_{2} \mathrm{O}\)

    Ans. \(\mathrm{SO}_{2}\)

āĻŦāĻžāĻ‚āĻ˛āĻž

  1. āĻĒā§āĻ°āĻ¤āĻŋāĻˇā§āĻ āĻž āĻ˛āĻžāĻ­ āĻ•āĻ°ā§‡āĻ›ā§‡ āĻ¯ā§‡-
    1. āĻĒā§āĻ°āĻ¤āĻŋāĻˇā§āĻ āĻŋāĻ¤
    2. āĻ¸āĻĢāĻ˛
    3. āĻ˛āĻŦā§āĻ§āĻĒā§āĻ°āĻ¤āĻŋāĻˇā§āĻ 
    4. āĻĒā§āĻ°āĻ¤āĻŋāĻˇā§āĻ āĻžāĻ˛āĻŦā§āĻ§

    Ans. āĻ˛āĻŦā§āĻ§āĻĒā§āĻ°āĻ¤āĻŋāĻˇā§āĻ 

  2. ‘āĻŦā§āĻĻā§āĻ§āĻŋ’ āĻļāĻŦā§āĻĻāĻŸāĻŋāĻ° āĻ āĻŋāĻ• āĻĒā§āĻ°āĻ•ā§ƒāĻ¤āĻŋ āĻ“ āĻĒā§āĻ°āĻ¤ā§āĻ¯āĻ¯āĻŧ-
    1. āĻŦā§āĻĻ + āĻ§āĻŋ
    2. āĻŦā§āĻ§ + āĻĻāĻŋ
    3. ✓āĻŦā§āĻ§ā§ + āĻ¤āĻŋ
    4. āĻŦā§āĻĻā§āĻ§ + āĻ‡

    Ans. ✓āĻŦā§āĻ§ā§ + āĻ¤āĻŋ

  3. ‘āĻāĻ• āĻ¸āĻŽāĻ¯āĻŧ āĻ¸ā§‚āĻ°ā§āĻ¯āĻ•ā§‡ āĻĸā§‡āĻ•ā§‡ āĻ…āĻ¨ā§‡āĻ• āĻŽā§‡āĻ˜ā§‡āĻ° …’ āĻļā§‚āĻ¨ā§āĻ¯āĻ¸ā§āĻĨāĻžāĻ¨ā§‡āĻ° āĻļāĻŦā§āĻĻāĻŸāĻŋ āĻšāĻšā§āĻ›ā§‡-
    1. āĻ°āĻžāĻļāĻŋ
    2. āĻĻāĻ˛
    3. āĻĒāĻžāĻ–āĻŋ
    4. āĻĒāĻžāĻ˛āĻ•

    Ans. āĻĒāĻžāĻ˛āĻ•

  4. ‘āĻ†āĻ¸āĻ˛ āĻ•āĻĨāĻž āĻāĻ‡ āĻ¯ā§‡ āĻŽāĻžāĻ¨ā§āĻˇā§‡āĻ° āĻĻā§‡āĻšāĻŽāĻ¨ā§‡āĻ° āĻ¸āĻ•āĻ˛ āĻĒā§āĻ°āĻ•āĻžāĻ° āĻ•ā§āĻ°āĻŋāĻ¯āĻŧāĻžāĻ° āĻŽāĻ§ā§āĻ¯ā§‡ āĻ•ā§āĻ°ā§€āĻĄāĻŧāĻž āĻļā§āĻ°ā§‡āĻˇā§āĻ  āĻ•ā§‡āĻ¨āĻ¨āĻž āĻ¤āĻž āĻ‰āĻĻā§āĻĻā§‡āĻļā§āĻ¯āĻšā§€āĻ¨’ āĻ‰āĻĻā§āĻ§ā§ƒāĻ¤āĻžāĻ‚āĻļā§‡ āĻĒā§āĻ°ā§Ÿā§‹āĻœāĻ¨ā§€āĻ¯āĻŧ āĻ¯āĻ¤āĻŋāĻšāĻŋāĻšā§āĻ¨ā§‡āĻ° āĻ¸āĻ‚āĻ–ā§āĻ¯āĻž-
    1. āĻĻā§āĻ‡
    2. āĻ¤āĻŋāĻ¨
    3. āĻĒāĻžāĻāĻš
    4. āĻ›āĻ¯āĻŧ

    Ans. āĻ¤āĻŋāĻ¨

  5. The wind suddenly dropped. āĻŦāĻžāĻ•ā§āĻ¯āĻŸāĻŋāĻ° āĻ¯āĻĨāĻžāĻ¯āĻĨ āĻŦāĻ™ā§āĻ—āĻžāĻ¨ā§āĻŦāĻžāĻĻ?
    1. āĻŦāĻžāĻ¤āĻžāĻ¸ āĻĒāĻĄāĻŧā§‡ āĻ—ā§‡āĻ˛
    2. āĻŦāĻžāĻ¤āĻžāĻ¸āĻŸāĻž āĻ•āĻŽā§‡ āĻ—ā§‡āĻ˛
    3. āĻšāĻ āĻžā§Ž āĻŦāĻžāĻ¤āĻžāĻ¸ āĻ•āĻŽā§‡ āĻ—ā§‡āĻ˛
    4. āĻšāĻ āĻžā§Ž āĻ¸ā§āĻ¤āĻŦā§āĻ§āĻ¤āĻž āĻ¨ā§‡āĻŽā§‡ āĻāĻ˛

    Ans. āĻšāĻ āĻžā§Ž āĻŦāĻžāĻ¤āĻžāĻ¸ āĻ•āĻŽā§‡ āĻ—ā§‡āĻ˛

  6. ‘āĻĒā§āĻ°āĻžāĻšā§€āĻ¨â€™ āĻāĻ° āĻŦāĻŋāĻĒāĻ°ā§€āĻ¤ āĻļāĻŦā§āĻĻ-
    1. āĻ¤āĻ°ā§āĻŖ
    2. āĻ¨āĻŦā§€āĻ¨
    3. āĻ…āĻ°ā§āĻŦāĻžāĻšā§€āĻ¨
    4. āĻ¨ā§‚āĻ¤āĻ¨

    Ans. āĻ…āĻ°ā§āĻŦāĻžāĻšā§€āĻ¨

  7. ‘āĻŽā§‡āĻ¨āĻŋāĻŽā§āĻ–ā§‹â€™ āĻŦāĻ˛āĻ¤ā§‡ āĻŦā§‹āĻāĻžāĻ¯āĻŧ-
    1. āĻ­ā§€āĻ¤ā§
    2. āĻ˛āĻžāĻœā§āĻ•
    3. āĻŽā§āĻ–āĻ°āĻž
    4. āĻŦāĻŋāĻĄāĻŧāĻžāĻ˛āĻŽā§āĻ–ā§‹

    Ans. āĻ˛āĻžāĻœā§āĻ•

  8. ‘āĻļāĻŋāĻļāĻŋāĻ° āĻ¯āĻ–āĻ¨ āĻ•ā§‹āĻ˛ā§‡ āĻ¤āĻ–āĻ¨ āĻ¤āĻžāĻšāĻžāĻ° āĻŽāĻžāĻ° āĻŽā§ƒāĻ¤ā§āĻ¯ā§ āĻšāĻ¯āĻŧāĨ¤â€™ āĻŦāĻžāĻ•ā§āĻ¯āĻŸāĻŋ-
    1. āĻ¸āĻ°āĻ˛
    2. āĻ¯ā§ŒāĻ—āĻŋāĻ•
    3. āĻœāĻŸāĻŋāĻ˛
    4. āĻ–āĻŖā§āĻĄ

    Ans. āĻœāĻŸāĻŋāĻ˛

  9. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻŦāĻŋāĻļā§‡āĻˇāĻŖ?
    1. āĻĻāĻŋāĻ¨
    2. āĻĻāĻŋāĻ¨āĻžāĻ¨ā§āĻ¤
    3. āĻĻāĻŋāĻ¨-āĻ°āĻžāĻ¤
    4. āĻĻā§€āĻ¨

    Ans. āĻĻā§€āĻ¨

  10. ‘āĻšāĻžāĻ¸āĻŋ āĻĻāĻŋāĻ¯āĻŧā§‡ āĻ˜āĻ°āĻŸāĻžāĻ•ā§‡ āĻ­āĻ°āĻŋāĻ¯āĻŧā§‡ āĻ°āĻžāĻ–āĻ¤ā§‹ āĻ¸ā§‡āĨ¤ āĻŦāĻžāĻ•ā§āĻ¯āĻŸāĻŋāĻ¤ā§‡ ‘āĻĻāĻŋāĻ¯āĻŧā§‡â€™ āĻšāĻ˛ā§‹-
    1. āĻ…āĻŦā§āĻ¯āĻ¯āĻŧ
    2. āĻĒā§āĻ°āĻ¤ā§āĻ¯āĻ¯āĻŧ
    3. āĻ…āĻ¨ā§āĻ¸āĻ°ā§āĻ—
    4. āĻ‰āĻĒāĻ¸āĻ°ā§āĻ—

    Ans. āĻ…āĻ¨ā§āĻ¸āĻ°ā§āĻ—

  11. āĻ¨āĻŋāĻšā§‡āĻ° āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻŦāĻŋāĻ°āĻžāĻŽāĻšāĻŋāĻšā§āĻ¨ āĻ¨āĻ¯āĻŧ?
    1. āĻ•āĻŽāĻž (,)
    2. āĻ¸ā§‡āĻŽāĻŋ-āĻ•ā§‹āĻ˛āĻ¨ [;]
    3. āĻĄā§āĻ¯āĻžāĻ¸ [-]
    4. āĻšāĻžāĻ‡āĻĢā§‡āĻ¨ [-]

    Ans.

  12. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ§ā§āĻŦāĻ¨āĻŋāĻŦāĻŋāĻĒāĻ°ā§āĻ¯āĻ¯āĻŧā§‡āĻ° āĻ‰āĻĻāĻžāĻšāĻ°āĻŖ?
    1. āĻŦāĻĄāĻŧāĻĻāĻžāĻĻāĻž > āĻŦāĻĄāĻŧāĻĻāĻž
    2. āĻ•āĻŋāĻ›ā§ > āĻ•āĻŋāĻ›ā§
    3. āĻĒāĻŋāĻļāĻžāĻš > āĻĒāĻŋāĻšāĻžāĻļ
    4. āĻŽā§āĻ•ā§āĻ¤āĻž > āĻŽā§āĻ•ā§āĻ¤āĻž

    Ans. āĻĒāĻŋāĻļāĻžāĻš > āĻĒāĻŋāĻšāĻžāĻļ

  13. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ…āĻĒāĻĒā§āĻ°ā§Ÿā§‹āĻ—ā§‡āĻ° āĻĻā§ƒāĻˇā§āĻŸāĻžāĻ¨ā§āĻ¤?
    1. āĻāĻ•
    2. āĻāĻ•āĻ¤ā§āĻ°
    3. āĻāĻ•āĻ¤ā§āĻ°āĻŋāĻ¤
    4. āĻāĻ•āĻžāĻ•ā§€

    Ans. āĻāĻ•āĻ¤ā§āĻ°āĻŋāĻ¤

  14. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻāĻ•āĻžāĻ•ā§āĻˇāĻ° āĻļāĻŦā§āĻĻ?
    1. āĻŽāĻžāĻŽāĻž
    2. āĻ­āĻžāĻ‡
    3. āĻĻāĻŋāĻĻāĻŋ
    4. āĻšāĻžāĻšāĻž

    Ans. āĻ­āĻžāĻ‡

  15. ‘āĻ•ā§ƒāĻ•āĻ˛āĻžāĻ¸’ āĻāĻ° āĻĒā§āĻ°āĻ¤āĻŋāĻļāĻŦā§āĻĻ-
    1. āĻ•ā§ƒāĻļāĻ•āĻžāĻ¯āĻŧ
    2. āĻ•āĻžāĻāĻ•āĻĄāĻŧāĻž
    3. āĻ•ā§ƒāĻˇā§āĻŖāĻ•āĻžāĻ¯āĻŧ
    4. āĻ—āĻŋāĻ°āĻ—āĻŋāĻŸāĻŋ

    Ans. āĻ—āĻŋāĻ°āĻ—āĻŋāĻŸāĻŋ

  16. ‘āĻ­ā§‚āĻ™ā§āĻ—’ āĻāĻ° āĻļāĻŦā§āĻĻāĻžāĻ°ā§āĻĨ-
    1. āĻ­āĻ™ā§āĻ—ā§āĻ°
    2. āĻ­ā§āĻ°āĻŽāĻ°
    3. āĻ­ā§āĻœāĻ™ā§āĻ—
    4. āĻ—āĻžāĻĄāĻŧ

    Ans. āĻ­ā§āĻ°āĻŽāĻ°

  17. āĻĒā§‡āĻŸā§‹āĻ¯āĻŧāĻž āĻļāĻŦā§āĻĻā§‡āĻ° āĻ…āĻ°ā§āĻĨ-
    1. āĻ…āĻ¨ā§āĻ—āĻ¤
    2. āĻ˛āĻžāĻ āĻŋāĻ¯āĻŧāĻžāĻ˛
    3. āĻ¸āĻ¨ā§āĻ¤ā§āĻ°āĻžāĻ¸ā§€
    4. āĻĻāĻžāĻ˛āĻžāĻ˛

    Ans. āĻ…āĻ¨ā§āĻ—āĻ¤

  18. āĻ•ā§‹āĻ¨āĻŸāĻŋ āĻ¯ā§āĻ—ā§āĻŽ āĻ¸ā§āĻŦāĻ°āĻ§ā§āĻŦāĻ¨āĻŋ?
    1. āĻŠ
    2. āĻ‹
    3. āĻ
    4. āĻ

    Ans. āĻ

  19. āĻ•ā§‹āĻ¨ āĻļāĻŦā§āĻĻāĻŸāĻŋāĻ° āĻĒā§āĻ°ā§āĻˇāĻŦāĻžāĻšāĻ• āĻ°ā§‚āĻĒ āĻ¨ā§‡āĻ‡?
    1. āĻ¸āĻ¤ā§€
    2. āĻ āĻžāĻ•ā§āĻ°āĻ¨
    3. āĻāĻŋ
    4. āĻˇā§‹āĻĄāĻŧāĻļā§€

    Ans. āĻˇā§‹āĻĄāĻŧāĻļā§€

  20. āĻŦā§āĻ¯āĻžā§āĻœāĻ¨āĻŦāĻ°ā§āĻŖā§‡āĻ° āĻ¸āĻ‚āĻ•ā§āĻˇāĻŋāĻĒā§āĻ¤ āĻ°ā§‚āĻĒāĻ•ā§‡ āĻ•ā§€ āĻŦāĻ˛ā§‡?
    1. āĻĢāĻ˛āĻž
    2. āĻ•āĻžāĻ°
    3. āĻ…āĻ•ā§āĻˇāĻ°
    4. āĻ§ā§āĻŦāĻ¨āĻŋāĻŽā§‚āĻ˛

    Ans. āĻĢāĻ˛āĻž

  21. ‘āĻ‡āĻ•āĻž’ āĻĒā§āĻ°āĻ¤ā§āĻ¯āĻ¯āĻŧ āĻ•ā§‹āĻ¨ āĻļāĻŦā§āĻĻā§‡ āĻ•ā§āĻˇā§āĻĻā§āĻ°āĻžāĻ°ā§āĻĨā§‡ āĻŦā§āĻ¯āĻŦāĻšā§ƒāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡?
    1. āĻ¸ā§‡āĻŦāĻŋāĻ•āĻž
    2. āĻŽāĻžāĻ˛āĻŋāĻ•āĻž
    3. āĻŦāĻžāĻ˛āĻŋāĻ•āĻž
    4. āĻšāĻžāĻ˛āĻŋāĻ•āĻž

    Ans. āĻŽāĻžāĻ˛āĻŋāĻ•āĻž

  22. ‘āĻ¸āĻ•āĻ˛ āĻ›āĻžāĻ¤ā§āĻ°āĻ°āĻžāĻ‡ āĻ¯āĻĨāĻžāĻ¸āĻŽāĻ¯āĻŧā§‡ āĻ‰āĻĒāĻ¸ā§āĻĨāĻŋāĻ¤ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡āĨ¤’ āĻŦāĻžāĻ•ā§āĻ¯āĻŸāĻŋāĻ¤ā§‡ āĻ•ā§€ āĻ§āĻ°āĻ¨ā§‡āĻ° āĻ­ā§āĻ˛ āĻ†āĻ›ā§‡?
    1. āĻŦāĻžāĻ¨āĻžāĻ¨
    2. āĻĒāĻĻ
    3. āĻŦāĻšāĻ¨
    4. āĻŦāĻŋāĻ­āĻ•ā§āĻ¤āĻŋ

    Ans. āĻŦāĻšāĻ¨

  23. ‘āĻā§‹āĻ˛ā§‡āĻ° āĻ˛āĻžāĻ‰ āĻ…āĻŽā§āĻŦāĻ˛ā§‡āĻ° āĻ•āĻĻā§â€™ āĻŦāĻžāĻ—āĻ§āĻžāĻ°āĻžāĻ° āĻ…āĻ°ā§āĻĨ āĻ•ā§€?
    1. āĻœā§€āĻ°ā§āĻŖāĻļā§€āĻ°ā§āĻŖ āĻ˛ā§‹āĻ•
    2. āĻŽāĻŋāĻļāĻŋāĻ¯āĻŧā§‡ āĻĢā§‡āĻ˛āĻž
    3. āĻ¸āĻŦ āĻĒāĻ•ā§āĻˇā§‡āĻ° āĻŽāĻ¨ āĻ¯ā§āĻ—āĻŋāĻ¯āĻŧā§‡ āĻšāĻ˛āĻž
    4. āĻĒā§āĻāĻĨāĻŋāĻ—āĻ¤ āĻŦāĻŋāĻĻā§āĻ¯āĻž

    Ans. āĻ¸āĻŦ āĻĒāĻ•ā§āĻˇā§‡āĻ° āĻŽāĻ¨ āĻ¯ā§āĻ—āĻŋāĻ¯āĻŧā§‡ āĻšāĻ˛āĻž

  24. ‘āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€â€™ āĻ—āĻ˛ā§āĻĒā§‡ āĻ‰āĻ˛ā§āĻ˛ā§‡āĻ–āĻ•ā§ƒāĻ¤ āĻāĻĄāĻŽāĻ¨ā§āĻĄ āĻŦāĻžāĻ°ā§āĻ•ā§‡āĻ° āĻ˛ā§‡āĻ–āĻž ‘āĻĢā§āĻ°ā§‡āĻžā§āĻš āĻ°ā§‡āĻ­ā§‹āĻ˛ā§āĻ¯ā§āĻļāĻ¨’ āĻ—ā§āĻ°āĻ¨ā§āĻĨāĻŸāĻŋ āĻ•āĻ¤ āĻ–ā§āĻ°āĻŋāĻ¸ā§āĻŸāĻžāĻŦā§āĻĻā§‡ āĻĒā§āĻ°āĻ•āĻžāĻļāĻŋāĻ¤ āĻšāĻ¯āĻŧ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. ā§§ā§­ā§¯ā§Ļ
    2. ā§§ā§­ā§¯ā§¨
    3. ā§§ā§­ā§¯ā§Ē
    4. ā§§ā§Žā§Ļā§§

    Ans. ā§§ā§­ā§¯ā§Ļ

  25. ‘āĻ¸ā§‹āĻ¨āĻžāĻ° āĻ¤āĻ°ā§€’ āĻ•āĻŦāĻŋāĻ¤āĻžāĻ¯āĻŧ ‘āĻŦāĻžāĻāĻ•āĻž āĻœāĻ˛” āĻŦāĻ˛āĻ¤ā§‡ āĻĒā§āĻ°āĻ¤ā§€āĻ•ā§€ āĻ…āĻ°ā§āĻĨā§‡ āĻ•ā§€āĨ¤ āĻŦā§‹āĻāĻžāĻ¨ā§‹ āĻšāĻ¯āĻŧā§‡āĻ›ā§‡?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻ•āĻŦāĻŋāĻ° āĻŦā§āĻ¯āĻ•ā§āĻ¤āĻŋāĻ¸āĻ¤ā§āĻ¤āĻž
    2. āĻŽāĻšāĻžāĻ•āĻžāĻ˛
    3. āĻ•āĻžāĻ˛āĻ¸ā§āĻ°ā§‹āĻ¤
    4. āĻ•āĻŦāĻŋāĻ° āĻ¸ā§ƒāĻˇā§āĻŸāĻŋāĻ•āĻ°ā§āĻŽ

    Ans. āĻ•āĻžāĻ˛āĻ¸ā§āĻ°ā§‹āĻ¤

  26. āĻ•ā§‹āĻ¨ āĻĻā§āĻŸāĻŋ āĻ°āĻšāĻ¨āĻžāĻ¯āĻŧ ‘āĻ¸ā§€āĻ¤āĻž” āĻ¨āĻžāĻŽā§‡āĻ° āĻ‰āĻ˛ā§āĻ˛ā§‡āĻ– āĻĒāĻžāĻ“āĻ¯āĻŧāĻž āĻ¯āĻžāĻ¯āĻŧ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€ āĻ“ āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€
    2. āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€ āĻ“ āĻ¸āĻžāĻšāĻŋāĻ¤ā§āĻ¯ā§‡ āĻ–ā§‡āĻ˛āĻž
    3. āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€ āĻ“ āĻŦāĻŋāĻ˛āĻžāĻ¸ā§€
    4. āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€ āĻ“ āĻ¸āĻžāĻšāĻŋāĻ¤ā§āĻ¯ā§‡ āĻ–ā§‡āĻ˛āĻž

    Ans. āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€ āĻ“ āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€

  27. ‘āĻ†āĻĨāĻžāĻ˛â€™ āĻ•ā§€?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻ†āĻšā§āĻ›āĻžāĻĻāĻ¨
    2. āĻĒāĻžāĻ¤ā§āĻ°
    3. āĻ—ā§‹āĻ¯āĻŧāĻžāĻ˛
    4. āĻ†āĻ¸ā§āĻ¤āĻžāĻŦāĻ˛

    Ans. āĻ—ā§‹āĻ¯āĻŧāĻžāĻ˛

  28. āĻ—āĻ˛ā§āĻĒā§‡āĻ° āĻ°āĻžāĻœāĻž āĻ›āĻŋāĻ˛ āĻ•ā§‡?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻ°āĻžāĻšāĻžāĻ¤
    2. āĻ°ā§‡āĻŖā§
    3. āĻ¨āĻžāĻœāĻŋāĻŽ
    4. āĻ¤āĻĒā§

    Ans. āĻ¤āĻĒā§

  29. āĻ†āĻŽāĻ¨ āĻ§āĻžāĻ¨ā§‡āĻ° āĻ‰āĻ˛ā§āĻ˛ā§‡āĻ– āĻ†āĻ›ā§‡ āĻ•ā§‹āĻ¨ āĻ•āĻŦāĻŋāĻ¤āĻžāĻ¯āĻŧ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻ•āĻŦāĻ°
    2. āĻ¸ā§‹āĻ¨āĻžāĻ° āĻ¤āĻ°ā§€
    3. āĻ†āĻŽāĻžāĻ° āĻĒā§‚āĻ°ā§āĻŦ āĻŦāĻžāĻ‚āĻ˛āĻž
    4. āĻŦāĻžāĻ‚āĻ˛āĻžāĻĻā§‡āĻļ

    Ans. āĻŦāĻžāĻ‚āĻ˛āĻžāĻĻā§‡āĻļ

  30. ‘āĻ•ā§‡āĻ¨ āĻ¸āĻ–āĻŋ āĻ•ā§‹āĻŖā§‡ āĻ•āĻžāĻāĻĻāĻŋāĻ› āĻŦāĻ¸āĻŋāĻ¯āĻŧāĻž?’ āĻĒāĻ™āĻ•ā§āĻ¤āĻŋāĻŸāĻŋ āĻ•ā§‹āĻ¨ āĻ°āĻšāĻ¨āĻžāĻ¯āĻŧ āĻĒāĻžāĻ“āĻ¯āĻŧāĻž āĻ¯āĻžāĻ¯āĻŧ?(āĻĒā§āĻ°āĻžāĻ¤āĻ¨ āĻ¸āĻŋāĻ˛ā§‡āĻŦāĻžāĻ¸)
    1. āĻŦāĻŋāĻ˛āĻžāĻ¸ā§€
    2. āĻ¤āĻžāĻšāĻžāĻ°ā§‡āĻ‡ āĻĒāĻĄāĻŧā§‡ āĻŽāĻ¨ā§‡
    3. āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€
    4. āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€

    Ans. āĻ…āĻ°ā§āĻ§āĻžāĻ™ā§āĻ—ā§€

āĻ‡āĻ‚āĻ°ā§‡āĻœāĻŋ

Read the following passage and answer the questions below (1-5)
Increased numbers of women in science can only be a good thing. Not simply because it is grossly unjust for women to be unable to experience the challenging but also hugely intellectually rewarding experience of participating in scientific research, but also because the cost to society of excluding women is intolerably high. We need the very best minds going into science, and it stands to reason that if women are excluded, we cut this resource in half. What’s more, women bring new ways of thinking and a broader range of ideas to the table, which is crucial for science to flourish. All scientists have a responsibility to be feminists and encourage women to participate in science and fight the barriers that exist. However, this is often more easily said than done. There are several proposed reasons for why women are discouraged from participating in science at a ranger of levels -form primary school children to professors. Among other things, these include a lack of role models and support networks -as well as harassment and bullying-but also less obvious barriers, for example, unconscious biases in job interviews and letters of reference. In the end, the way to tackle prejudice against women is to increase awareness of the particular challenges faced by female scientists and to put systems in place that promote equal opportunities. Meanwhile, we need outstanding female role models to show unequivocally that women can compete on the same intellectual level as men and encourage other women to follow their lead. Together we can create the level playing field which is so desperately required.

  1. Which of the following opinions is not shared by the writer of the passage?

    1. A Participation of women science is beneficial for humanity.
    2. Women bring in new ideas and resources.
    3. Women tend to be more intelligent than men.
    4. Excluding women from science is counter-productive.

    Ans. Women tend to be more intelligent than men.

  2. If an idea “stands to reason”, it is-
    1. illogical
    2. apparently sensible
    3. irrational
    4. sensible

    Ans. apparently sensible

  3. In the passage, “flourish” means the opposite of-
    1. boom
    2. decline
    3. unfold
    4. grow

    Ans. decline

  4. Which of the following is not the reason for women staying away from science, according to the passage?
    1. lack of role models
    2. inadequate facilities
    3. orthodox mindset
    4. character trait

    Ans. orthodox mindset

  5. “Unequivocally” means-
    1. indirectly
    2. clearly
    3. hesitantly
    4. politely

    Ans. clearly

  6. Never _____ till tomorrow what you can do today.
    1. put off
    2. put down
    3. put up with
    4. put up

    Ans. put off

  7. The name “Schengen” originates _____ a small town Luxemberg, situated near the French and German borders.
    1. from, in
    2. in, in
    3. in, away from
    4. at, near

    Ans. from, in

  8. The planting and care of woody plants, especially trees, is known as-
    1. arboriculture
    2. husbandry
    3. pisciculture
    4. aquaculture

    Ans. arboriculture

  9. “The experiment has been a resounding success.” Here “resounding” means.
    1. moderate
    2. somewhat
    3. huge
    4. quick

    Ans. huge

  10. You are advised to make your visa application _____ of your proposed travel date.
    1. well in advance
    2. on time
    3. at the time
    4. early

    Ans. well in advance

  11. _____ the exams are over, we can plan for a sight seeing tour.
    1. Even now
    2. Now that
    3. Now and then
    4. Now or never

    Ans. Now that

  12. In 1962, the story of Helen Keller’s life _____ into a fillm, The Miracle Worker.
    1. made
    2. had made
    3. was made
    4. has been made

    Ans. was made

  13. Water is essential to life and we depend on it, _____ many people take water for granted.
    1. yet
    2. but also
    3. nonetheless
    4. furthermore

    Ans. furthermore

  14. If I fail my exams, my parents ___ let me go to Cox’s Bazar this summer.
    1. wouldn’t
    2. would not have
    3. were not
    4. won’t

    Ans. won’t

  15. “Oncology’ relates to ______
    1. law
    2. medicine
    3. ecology
    4. environment

    Ans. medicine

  16. “Malignancy” is _____
    1. the feeling of hatred
    2. the state of a disease likely to cause death
    3. the science of maleness
    4. the belief in life after death

    Ans. the state of a disease likely to cause death

  17. The antonym of “migrant” is _____
    1. expatriate
    2. gypsy
    3. native
    4. nomad

    Ans. native

  18. The correct spelling is ______
    1. sobrity
    2. sobriaty
    3. sobriety
    4. sobrighty

    Ans. sobriety

  19. A philanthropist is someone who _____

    1. is extremely intellilgent
    2. is rich and helps the poor and the needy
    3. studies philology
    4. understand the secret of the needy

    Ans. is rich and helps the poor and the needy

  20. We were just having a friendly _____ about cricket.
    1. gossip
    2. chat
    3. whisper
    4. report

    Ans. chat

  21. We hid our boat in the bushes and set _____ a camp ______the river.
    1. by, in
    2. on, at
    3. up, by
    4. down, over

    Ans. on, at

  22. If I were you, I _____ to the picnic with my friends.
    1. will by going
    2. would go
    3. will go
    4. going

    Ans. would go

  23. Water is our life source; it makes up 70% of _____ bodies.
    1. us
    2. their
    3. our
    4. ours

    Ans. our

  24. It is now _____ expensive to repair the damage which has been done.
    1. very much
    2. too much
    3. many
    4. too

    Ans. too much

  25. If we have _____ anything from our mistakes, we will keep the new areas of water clean.
    1. learn
    2. learned
    3. learning
    4. learnt

    Ans. learned, learnt

  26. The registered parcel _____ arrived for you is on the table.
    1. who
    2. whom
    3. which
    4. when

    Ans. which

  27. You must ______ of Helen Keller.
    1. hear
    2. heard
    3. have heard
    4. hearing

    Ans. have heard

  28. No _____ figures are available about the bus accident casualties.
    1. precised
    2. precis
    3. precisely
    4. precise

    Ans. precise

  29. I am sick of rain and bad weather! Hopefully, when we wake up tomorrow morning, the sun ______
    1. is shining
    2. will be shining
    3. will be shine
    4. will shining

    Ans. will be shining

  30. By the time I get to Khulna this evening, I _____ more than three hundred miles.
    1. will driving
    2. will be driving
    3. will have been driving
    4. will have been driven

    Ans. will have been driving

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