DU A Unit Admission Question Solution 2013-2014

DU A Unit Admission Question Solution 2013-2014

āύāĻŋāĻšā§‡āϰ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇ āĻĻ⧇āϖ⧇ āύāĻžāĻ“ āĻŦāĻŋāĻ¸ā§āϤāĻžāϰāĻŋāϤ:

āϕ⧋āĻ°ā§āϏāϟāĻŋ āĻ•āĻŋāύāϤ⧇ āĻĒāĻžāĻļ⧇āϰ āĻŦāĻžāϟāύāϟāĻŋ āĻ•ā§āϞāĻŋāĻ• āĻ•āϰ:   

 

āϕ⧋āĻ°ā§āϏ⧇āϰ āĻĄā§‡āĻŽā§‹ āĻ­āĻŋāĻĄāĻŋāĻ“(āĻāĻ­āĻžāĻŦ⧇ āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŦāĻŋāĻœā§āĻžāĻžāύ+āϰāϏāĻžā§Ÿāύ+āωāĻšā§āϚāϤāϰāĻ—āĻŖāĻŋāϤ āĻāϰ āĻŦāĻŋāĻ—āϤ āĻŦāĻŋāĻļ āĻŦāĻ›āϰ⧇āϰ āϏāĻ•āϞ āĻĒā§āϰāĻļā§āύ⧇āϰ āϏāĻŽāĻžāϧāĻžāύ āĻĨāĻžāĻ•āĻŦ⧇ āĻ­āĻŋāĻĄāĻŋāĻ“āϤ⧇)

 

āĻĒāĻĻāĻžāĻ°ā§āĻĨāĻŦāĻŋāĻœā§āĻžāĻžāύ

  1. \(\frac{d^{2} x}{d t^{2}}+25 x=0\) āϏāĻŽā§€āĻ•āϰāĻŖāϟāĻŋ āĻāĻ•āϟāĻŋ āϏāϰāϞ āĻ›āĻ¨ā§āĻĻāĻŋāϤ āĻ¸ā§āĻĒāĻ¨ā§āĻĻāύ āĻŦāĻ°ā§āĻŖāύāĻž āĻ•āϰ⧇āĨ¤ āĻāχ āĻ¸ā§āĻĒāĻ¨ā§āĻĻāύ⧇āϰ āĻ•ā§ŒāĻŖāĻŋāĻ• āĻ•āĻŽā§āĻĒāĻžāĻ™ā§āĻ• āĻ•āϤ?
    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. āϏ⧁āĻĒāĻžāϰāĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āϟāϰ āϏāĻžāϧāĻžāϰāĻŖ āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āϟāϰ⧇āϰ āĻšā§‡āϝāĻŧ⧇ āĻŦ⧇āĻļāĻŋ āϏ⧁āĻļ⧃āĻ™ā§āĻ–āϞāĨ¤ āϝāĻĻāĻŋ āϏ⧁āĻĒāĻžāϰāĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āϟāϰ āĻāĻŦāĻ‚ āϏāĻžāϧāĻžāϰāĻŖ āĻ•āĻ¨ā§āĻĄāĻžāĻ•ā§āϟāϰ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āĻāύāĻŸā§āϰāĻĒāĻŋ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ \(\mathbf{S}_{\mathrm{s}}\) āĻāĻŦāĻ‚ \(\mathbf{S}_{\mathbf{n}}\) āĻšāϝāĻŧ āϤāĻŦ⧇ āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āϏāĻ 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 āϞāĻŋāĻ–āĻŋāϤ āĻāĻ•āϟāĻŋ āĻŦ⧈āĻĻā§āϝ⧁āϤāĻŋāĻ• āĻŦāĻžāĻ˛ā§āĻŦ āĻĒā§āϰāϤāĻŋāĻĻāĻŋāύ 10 āϘāĻ¨ā§āϟāĻž āĻœā§āĻŦāϞ⧇āĨ¤ 1k-Wh-āĻāϰ āĻŽā§‚āĻ˛ā§āϝ 3.00 āϟāĻžāĻ•āĻž āĻšāϞ⧇,āĻāϰ āϜāĻ¨ā§āϝ āϜ⧁āϞāĻžāχ āĻŽāĻžāϏ⧇ āĻŦ⧈āĻĻā§āϝ⧁āϤāĻŋāĻ• āĻŦāĻŋāϞ āĻ•āϤ āφāϏāĻŦ⧇?
    1. 200 Tk
    2. 155 Tk
    3. 150 Tk
    4. 93 Tk

    Ans. 93 Tk

  4. āĻāĻ•āϟāĻŋ āĻ—āϤāĻŋāĻļā§€āϞ āχāϞ⧇āĻ•āĻŸā§āϰāύ⧇āϰ āĻ­āϰ \(\mathrm{m}_{\mathrm{e}}\) āĻšāϞ⧇, āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āϏāĻ 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. āϝāĻĻāĻŋ \(\overrightarrow{\mathrm{A}}=2 \hat{\mathrm{i}}+3 \hat{\mathrm{j}}-5 \hat{\mathrm{k}}\) āĻāĻŦāĻ‚ \(\overrightarrow{\mathrm{B}}=\mathbf{m} \hat{\mathrm{i}}+2 \hat{\mathrm{j}}+\mathbf{1 0} \hat{\mathrm{k}}\) āϤāĻŦ⧇ m- āĻāϰ āĻŽāĻžāύ āĻ•āϤ āĻšāϞ⧇ āϭ⧇āĻ•ā§āϟāϰāĻĻā§āĻŦāϝāĻŧ āĻĒāϰāĻ¸ā§āĻĒāϰ⧇āϰ āωāĻĒāϰ āϞāĻŽā§āĻŦ āĻšāĻŦ⧇?
    1. 12
    2. 20
    3. 22
    4. 120

    Ans. 22

  6. āĻāĻ•āϟāĻŋ āϏāϰāϞ āĻĻā§‹āϞāϕ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻ…āĻĒāϰāϟāĻŋāϰ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖāĨ¤ āĻĻā§āĻŦāĻŋāϤ⧀āϝāĻŧ āϏāϰāϞ āĻĻā§‹āϞāϕ⧇āϰ āĻĻā§‹āϞāύāĻ•āĻžāϞ 3s āĻšāϞ⧇ āĻĒā§āϰāĻĨāĻŽāϟāĻŋāϰ āĻĻā§‹āϞāύāĻ•āĻžāϞ āĻ•āϤ?
    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. āϞ⧇āĻ–āϚāĻŋāĻ¤ā§āϰ⧇, X āĻĻā§āĻŦāĻžāϰāĻž āĻāĻ•āϟāĻŋ āĻ—ā§āϝāĻžāϏ⧇āϰ āĻĒā§āϰāĻžāĻĨāĻŽāĻŋāĻ• āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻĻ⧇āĻ–āĻžāύ⧋ āĻšāĻšā§āϛ⧇āĨ¤ āϞ⧇āĻ–āϚāĻŋāĻ¤ā§āϰ⧇ āϕ⧋āύ āϰ⧇āĻ–āĻžāϟāĻŋ āĻāĻ•āϟāĻŋ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āĻ—ā§āϝāĻžāϏāϟāĻŋ āĻĻā§āĻŦāĻžāϰāĻžāĨ¤ āĻŦāĻž āĻ—ā§āϝāĻžāϏ⧇āϰ āωāĻĒāϰ āϕ⧋āύ⧋ āĻ•āĻžāϜ āĻ•āϰāĻž āĻšāĻšā§āϛ⧇ āύāĻž āύāĻŋāĻ°ā§āĻĻ⧇āĻļ āĻ•āϰ⧇āĨ¤

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

    Ans. XB

  8. āϏāĻŽā§āĻĻā§āϰ⧇ āύ⧋āĻ™āϰ āĻ•āϰāĻž āĻāĻ•āϟāĻŋ āϜāĻžāĻšāĻžāĻœā§‡āϰ āĻ•ā§āϝāĻžāĻĒā§āĻŸā§‡āύ āϞāĻ•ā§āĻˇā§āϝ āĻ•āϰ⧇āύ āϝ⧇ āĻĸ⧇āωāϝāĻŧ⧇āϰ āĻļā§€āĻ°ā§āώāϗ⧁āϞ⧋ āĻĒāϰāĻ¸ā§āĻĒāϰ āĻĨ⧇āϕ⧇ 16m āĻĻā§‚āϰ⧇ āĻāĻŦāĻ‚ āĻĒā§āϰāϤāĻŋ 2s āĻĒāϰāĻĒāϰ āĻāĻ•āϟāĻŋ āĻĸ⧇āω āφāϏāϛ⧇āĨ¤ āĻĸ⧇āωāϗ⧁āϞ⧋āϰ āĻŦ⧇āĻ— āĻ•āϤ?
    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•āϟāĻŋ āĻŦ⧁āϞ⧇āϟ āĻāĻ•āϟāĻŋ āĻ•āĻžāϠ⧇āϰ āϤāĻ•ā§āϤāĻž āϭ⧇āĻĻ āĻ•āϰāϤ⧇ āĻĒāĻžāϰ⧇āĨ¤ āĻŦ⧁āϞ⧇āϟāϟāĻŋāϰ āĻ—āϤāĻŋ 4 āϗ⧁āĻŖ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰāϞ⧇ āχāĻšāĻž āĻ•āϝāĻŧāϟāĻŋ āϐ āĻāĻ•āχ āĻŽāĻžāĻĒ⧇āϰ āϤāĻ•ā§āϤāĻž āϭ⧇āĻĻ āĻ•āϰāϤ⧇ āĻĒāĻžāϰāĻŦ⧇?
    1. 12
    2. 9
    3. 8
    4. 16

    Ans. 16

  10. 4 kg āĻ“ 6kg āĻ­āϰ⧇āϰ āĻĻ⧁āχāϟāĻŋ āĻŦāĻ¸ā§āϤ⧁ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ \(10 \mathrm{~ms}^{-1}\) āĻāĻŦāĻ‚ \(5 \mathrm{~ms}^{-1}\) āĻŦ⧇āϗ⧇ āĻāĻ•āχ āĻĻāĻŋāϕ⧇ āĻ—āϤāĻŋāĻļā§€āϞāĨ¤ āĻĒāϰāĻ¸ā§āĻĒāϰ āϧāĻžāĻ•ā§āĻ•āĻž āĻ–āĻžāĻ“āϝāĻŧāĻžāϰ āĻĒāϰ āĻŦāĻ¸ā§āϤ⧁ āĻĻ⧁āχāϟāĻŋ āϝ⧁āĻ•ā§āϤ āĻ…āĻŦāĻ¸ā§āĻĨāĻžāϝāĻŧ āϚāϞāϤ⧇ āĻĨāĻžāĻ•āϞ⧇, āϝ⧁āĻ•ā§āϤ āĻŦāĻ¸ā§āϤ⧁āϰ āĻŦ⧇āĻ— āĻ•āϤ?
    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. āϏ⧌āϰāĻļāĻ•ā§āϤāĻŋ āϕ⧋āύ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āϏ⧃āĻˇā§āϟāĻŋ āĻšāϝāĻŧ?
    1. Fission
    2. Induced Fission
    3. Fusion
    4. Chemical Reaction

    Ans. Fusion

  12. āĻāĻ•āϟāĻŋ āϏāĻŽāĻŦāĻžāĻšā§ āĻĒā§āϰāĻŋāϜāĻŽā§‡āϰ āĻĒā§āϰāϤāĻŋāϏāϰāĻžāĻ™ā§āĻ• \(\sqrt{2}\) āĻšāϞ⧇,āĻāϰ āĻ¨ā§āϝ⧂āύāϤāĻŽ āĻŦāĻŋāĻšā§āϝ⧁āϤāĻŋ āϕ⧋āĻŖ āĻ•āϤ?
    1. 60°
    2. 15°
    3. 30°
    4. 45°

    Ans. 30°

  13. 16 cm āĻĢā§‹āĻ•āĻžāϏ āĻĻā§‚āϰāĻ¤ā§āĻŦ āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āωāĻ¤ā§āϤāϞ āϞ⧇āĻ¨ā§āϏ āĻĨ⧇āϕ⧇ āĻ•āϤ āĻĻā§‚āϰ⧇ āĻŦāĻ¸ā§āϤ⧁ āĻ¸ā§āĻĨāĻžāĻĒāύ āĻ•āϰāϞ⧇ āĻŦāĻžāĻ¸ā§āϤāĻŦ āĻŦāĻŋāĻŽā§āĻŦ⧇āϰ āφāĻ•āĻžāϰ āĻŦāĻ¸ā§āϤ⧁āϰ āφāĻ•āĻžāϰ⧇āϰ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻšāĻŦ⧇?
    1. 24 cm
    2. 16 cm
    3. 8 cm
    4. 32 cm

    Ans. 24 cm

  14. āĻāĻ•āϟāĻŋ āĻšāĻžāχāĻĄā§āϰ⧋āĻœā§‡āύ āĻĒāϰāĻŽāĻžāϪ⧁ āωāĻ¤ā§āϤ⧇āϜāĻŋāϤ āĻ…āĻŦāĻ¸ā§āĻĨāĻž āĻĨ⧇āϕ⧇ āύāĻŋāĻŽā§āύāϤāĻŽ āĻļāĻ•ā§āϤāĻŋāĻ¸ā§āϤāϰ⧇ āφāϏāϞ⧇ āϝ⧇ āĻĢā§‹āϟāύ āύāĻŋāσāϏāϰāĻŖ āĻ•āϰāĻŦ⧇ āϤāĻžāϰ āϤāϰāĻ™ā§āĻ—āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ āĻ•āϤ āĻšāĻŦ⧇? āωāĻ¤ā§āϤ⧇āϜāĻŋāϤ āĻļāĻ•ā§āϤāĻŋāĻ¸ā§āϤāϰ āĻāĻŦāĻ‚ āύāĻŋāĻŽā§āύāϤāĻŽ āĻļāĻ•ā§āϤāĻŋāĻ¸ā§āϤāϰ⧇āϰ āĻļāĻ•ā§āϤāĻŋ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ -3.4 eV āĻāĻŦāĻ‚ -13.6 evāĨ¤ [āĻĻ⧇āĻ“āϝāĻŧāĻž āφāϛ⧇, āĻĒā§āĻ˛ā§āϝāĻžāĻ™ā§āĻ• āĻ§ā§āϰ⧁āĻŦāĻ•, \(\mathrm{h}=6.63 \times 10^{-34} \mathrm{~J}-\mathrm{s}\) āĻāĻŦāĻ‚ āφāϞ⧋āϰ āĻŦ⧇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. āĻŦ⧇āĻļāĻŋ āĻĨ⧇āϕ⧇ āĻ•āĻŽ āϭ⧇āĻĻāύ āĻ•ā§āώāĻŽāϤāĻž āĻ•ā§āϰāĻŽā§‡ āϤāĻŋāύāϟāĻŋ āϤ⧇āϜāĻ¸ā§āĻ•ā§āϰāĻŋāϝāĻŧ āϰāĻļā§āĻŽāĻŋ āĻšāϞ⧋-
    1. \(\alpha, \beta \& \gamma\)
    2. \(\beta, \gamma \& \alpha\)
    3. \(\gamma, \alpha \& \beta\)
    4. \(\gamma, \beta \& \alpha\)

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

  16. āĻāĻ•āϟāĻŋ m āĻ­āϰ⧇āϰ āĻāĻŦāĻ‚ e āφāϧāĻžāύ⧇āϰ āĻĒā§āϰ⧋āϟāύāϕ⧇ āĻļā§‚āĻ¨ā§āϝ āĻĨ⧇āϕ⧇ V āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ⧇ āĻ¤ā§āĻŦāϰāĻŋāϤ āĻ•āϰāĻž āĻšāϞ⧇ āĻāϰ āĻļ⧇āώ āĻŦ⧇āĻ— āĻ•āϤ?
    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. āĻĻ⧁āχāϟāĻŋ āϤāĻĄāĻŧāĻŋā§Ž āĻĒā§āϰāĻŦāĻžāĻš āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ \(\mathbf{I}=\mathbf{I}_{0} \sin \omega \mathbf{t}\) āĻ“ \(\mathbf{I}=\mathbf{I}_{0} \sin [\omega(\mathbf{t}+\mathbf{T} / 3)]\) āĻĻā§āĻŦāĻžāϰāĻž āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āϝāĻžāϝāĻŧ; āĻāĻĻ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āĻĻāĻļāĻž āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āĻ•āϤ?
    1. \(\pi / 2\)
    2. \(\pi / 3\)
    3. \(2\pi / 3\)
    4. \(\pi \)

    Ans. \(2\pi / 3\)

  18. āĻāĻ•āϟāĻŋ āφāĻĻāĻ°ā§āĻļ āĻ—ā§āϝāĻžāϏ⧇āϰ āύāĻŽā§āύāĻžāϰ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž 20°C, āϝāĻĻāĻŋ āύāĻŽā§āύāĻžāϟāĻŋāϰ āϚāĻžāĻĒ āĻāĻŦāĻ‚ āφāϝāĻŧāϤāύ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻ•āϰāĻž āĻšāϝāĻŧ, āϤāĻŦ⧇ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻ•āϤ?
    1. 20°C
    2. 80°C
    3. 900°C
    4. 1200°C

    Ans. 900°C

  19. āĻāĻ•āϟāĻŋ āĻĒāĻĻāĻžāĻ°ā§āĻĨ⧇ āϤāĻžāĻĒ āĻĒā§āĻ°ā§Ÿā§‹āĻ— āĻ•āϰāĻžāϰ āĻĒāϰāĻ“ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϰ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻšāϝāĻŧāύāĻŋāĨ¤ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āωāĻ•ā§āϤāĻŋāϟāĻŋ āĻāχ āϘāϟāύāĻžāϰ āωāĻĒāϝ⧁āĻ•ā§āϤ āĻŦā§āϝāĻžāĻ–ā§āϝāĻž āĻĒā§āϰāĻĻāĻžāύ āĻ•āϰ⧇?
    1. āĻĒāĻĻāĻžāĻ°ā§āĻĨāϟāĻŋ āĻ…āĻŦāĻļā§āϝāχ āĻ—ā§āϝāĻžāϏ
    2. āĻĒāĻĻāĻžāĻ°ā§āĻĨāϟāĻŋāϰ āĻĻāĻļāĻž āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻšāĻšā§āϛ⧇
    3. āĻĒāĻĻāĻžāĻ°ā§āĻĨāϟāĻŋāϰ āϤāĻžāĻĒā§€āϝāĻŧ āĻŦ⧈āĻļāĻŋāĻˇā§āĻŸā§āϝ āĻŦā§āϝāϤāĻŋāĻ•ā§āϰāĻŽ āϧāĻ°ā§āĻŽā§€
    4. āϚāĻžāϰāĻĒāĻžāĻļ⧇āϰ āĻĒāϰāĻŋāĻŦ⧇āĻļ⧇āϰ āϤ⧁āϞāύāĻžāϝāĻŧ āĻĒāĻĻāĻžāĻ°ā§āĻĨ⧇āϰ āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻž āĻ•āĻŽ

    Ans. āĻĒāĻĻāĻžāĻ°ā§āĻĨāϟāĻŋāϰ āĻĻāĻļāĻž āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻšāĻšā§āϛ⧇

  20. r āĻĻā§‚āϰāĻ¤ā§āĻŦ⧇ āϰāĻžāĻ–āĻž āĻĻ⧁āϟāĻŋ āĻ•ā§āώ⧁āĻĻā§āϰ āĻ•āĻŖāĻžāϰ āĻŽāĻ§ā§āϝ⧇ āĻĒāϰāĻ¸ā§āĻĒāϰ āĻŽāĻ§ā§āϝāĻžāĻ•āĻ°ā§āώ⧀āϝāĻŧ āφāĻ•āĻ°ā§āώāĻŖ āĻŦāϞ F, āĻ•āĻŖāĻž āĻĻ⧁āχāϟāĻŋāϰ āĻŽāĻžāĻāĻ–āĻžāύ⧇ āĻāĻ•āϟāĻŋ āĻ­āĻžāϰ⧀ āϞ⧋āĻšāĻžāϰ āĻĒāĻžāϤ āϰāĻžāĻ–āĻž āĻšāϞ⧇ āĻāĻ–āύ āϤāĻžāĻĻ⧇āϰ āĻŽāĻ§ā§āϝ⧇ āĻĒāϰāĻ¸ā§āĻĒāϰ āφāĻ•āĻ°ā§āώāĻŖ āĻŦāϞ āĻ•āϤ?
    1. 0
    2. F
    3. F/2
    4. F/4

    Ans. F

  21. āϚāĻŋāĻ¤ā§āϰ⧇ āĻĻ⧇āĻ–āĻžāύ⧋ āĻĒāĻĨ āĻĻāĻŋāϝāĻŧ⧇ āĻāĻ•āϟāĻŋ 4.0 N āĻ“āϜāύ⧇āϰ āĻĒāĻžāĻĨāϰāϕ⧇ āĻĒ⧃āĻĨāĻŋāĻŦā§€āϰ āĻ…āĻ­āĻŋāĻ•āĻ°ā§āώ⧀āϝāĻŧ āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇ P āĻŦāĻŋāĻ¨ā§āĻĻ⧁ āĻĨ⧇āϕ⧇ R āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϤ⧇ āĻ¸ā§āĻĨāĻžāύāĻžāĻ¨ā§āϤāϰāĻŋāϤ āĻ•āϰāĻž āĻšāϞ⧋āĨ¤ āĻĒāĻžāĻĨāϰāϟāĻŋāϰ āĻ¸ā§āĻĨāĻŋāϤāĻŋāĻļāĻ•ā§āϤāĻŋ āĻ•āϤ āĻŦ⧃āĻĻā§āϧāĻŋ āĻĒ⧇āϞ?

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

    Ans. 120 J

  22. āĻĒāϰāĻ¸ā§āĻĒāϰ āĻĨ⧇āϕ⧇ s āĻĻ⧁āϰāĻ¤ā§āĻŦ⧇ āĻ…āĻŦāĻ¸ā§āĻĨāĻŋāϤ āĻĻ⧁āχāϟāĻŋ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āϚāĻŋāĻĄāĻŧāϕ⧇ āĻāĻ•āĻŦāĻ°ā§āĻŖā§€ āφāϞ⧋ āĻĻā§āĻŦāĻžāϰāĻž āφāϞ⧋āĻ•āĻŋāϤ āĻ•āϰ⧇ āϚāĻŋāĻĄāĻŧ āĻĨ⧇āϕ⧇ D āĻĻ⧁āϰāĻ¤ā§āĻŦ⧇ āĻ…āĻŦāĻ¸ā§āĻĨāĻŋāϤ āĻĒāĻ°ā§āĻĻāĻžāϝāĻŧ āĻŦā§āϝāĻžāϤāĻŋāϚāĻžāϰ āĻĒāĻŸā§āϟāĻŋ āĻĒāĻžāĻ“āϝāĻŧāĻž āϗ⧇āϞāĨ¤ āϧāϰāĻž āϝāĻžāĻ• āĻĄā§‹āϰāĻžāϰ āĻĒā§āϰāĻ¸ā§āĻĨ X, āϝāĻĻāĻŋ s āĻāĻŦāĻ‚ D āωāĻ­āϝāĻŧāϕ⧇ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻ•āϰāĻž āĻšāϝāĻŧ āϤāĻŦ⧇ āĻĄā§‹āϰāĻžāϰ āĻĒā§āϰāĻ¸ā§āĻĨ⧇āϰ āĻŽāĻžāύ āĻ•āĻŋ āĻšāĻŦ⧇?
    1. X/2
    2. X
    3. 2X
    4. 4X

    Ans. X

  23. āĻŦāĻ°ā§āϤāύ⧀āϤ⧇ B āĻāĻŦāĻ‚ C āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϰ āĻŽāĻ§ā§āϝ⧇ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āĻ•āϤ?

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

    Ans. 2 V

  24. āϞ⧇āĻ–āϚāĻŋāĻ¤ā§āϰ⧇ āĻāĻ•āϟāĻŋ āϤāĻžāϰ⧇āϰ āĻĻ⧁āχ āĻĒā§āϰāĻžāĻ¨ā§āϤ⧇āϰ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ⧇āϰ āϏāĻžāĻĨ⧇ āϤāĻĄāĻŧāĻŋā§Ž āĻĒā§āϰāĻŦāĻžāĻšā§‡āϰ āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ āĻĻ⧇āĻ–āĻžāύ⧋ āĻšāϝāĻŧ⧇āϛ⧇āĨ¤ āϤāĻžāϰāϟāĻŋāϰ āϰ⧋āϧ āĻ•āϤ?

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

    Ans. \(1.5 \Omega\)

  25. āĻāĻ•āϟāĻŋ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āĻĒāĻžāϤ āϧāĻžāϰāĻ•āϕ⧇ āϚāĻžāĻ°ā§āϜāĻŋāϤ āĻ•āϰāĻžāϰ āĻĢāϞ⧇ āĻāϟāĻŋāϰ āĻĒāĻžāϤ āĻĻ⧁āχāϟāĻŋāϰ āĻŽāĻ§ā§āϝ⧇ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āĻšāϝāĻŧ VāĨ¤ āϧāĻžāϰāĻ•āϟāĻŋāϰ āϏāĻžā§āϚāĻŋāϤ āĻļāĻ•ā§āϤāĻŋ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻ•āϰāĻžāϰ āϜāĻ¨ā§āϝ āĻŦāĻŋāĻ­āĻŦ āĻĒāĻžāĻ°ā§āĻĨāĻ•ā§āϝ āĻ•āϤ āĻšāĻŦ⧇?
    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. āύāĻŋāĻšā§‡āϰ āĻŽāĻŋāĻļā§āϰāĻŋāϤ āĻāĻ•āĻ• āϗ⧁āϞ⧋āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧋āύāϟāĻŋ āĻ“āϝāĻŧāĻžāϟ āĻāϰ āϏāĻŽāϤ⧁āĻ˛ā§āϝ āύāϝāĻŧ?
    1. Joul/sec
    2. (Amp) (Volt)
    3. \(\left(\mathrm{Amp}^{2}\right)(\Omega)\)
    4. \(\Omega^{2} /\) Volt

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

  27. āĻāĻ•āϟāĻŋ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒāϰāĻŋāĻŦāĻžāĻšā§€ āϞāĻŽā§āĻŦāĻž āϏāϰāϞ āϤāĻžāϰ āĻĨ⧇āϕ⧇ 2 cm āĻĻ⧁āϰāĻ¤ā§āĻŦ⧇ āϚ⧁āĻŽā§āĻŦāĻ• āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ āĻŽāĻžāύ \(\mathbf{1 0}^{-6} \mathrm{~T}\) āĻšāϞ⧇ āϤāĻžāϰāϟāĻŋāϰ āĻŽāĻ§ā§āϝ āĻĻāĻŋāϝāĻŧ⧇ āĻĒā§āϰāĻŦāĻžāĻšāĻŋāϤ āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻāϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ āĻ•āϤ?
    1. 0.01 A
    2. 0.1 A
    3. 1 A
    4. 10 A

    Ans. 0.1 A

  28. \({ }_{83}^{214} \mathrm{Bi}\) āφāχāϏ⧋āĻŸā§‹āĻĒ āĻšāϤ⧇ āĻāĻ•āϟāĻŋ āφāϞāĻĢāĻž āĻ•āĻŖāĻž āύāĻŋāσāϏāϰāĻŖ āĻāϰ āĻĢāϞ⧇ āĻĒā§āϰ⧋āĻĄāĻžāĻ•ā§āϟ āφāχāϏ⧋āĻŸā§‹āĻĒ āĻšāĻŦ⧇-
    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•āϟāĻŋ āĻ•āĻžāϠ⧇āϰ āĻ–āĻŖā§āĻĄāϕ⧇ āφāύ⧁āĻ­ā§‚āĻŽāĻŋāϕ⧇āϰ āϏāĻžāĻĨ⧇ 60° āϕ⧋āϪ⧇ 200N āĻŦāϞ āĻĻā§āĻŦāĻžāϰāĻž āϟāĻžāύāĻž āĻšāĻšā§āϛ⧇āĨ¤ āĻŦāĻ¸ā§āϤ⧁āϟāĻŋāϰ āωāĻĒāϰ āφāύ⧁āϭ⧁āĻŽāĻŋāϕ⧇āϰ āĻĻāĻŋāϕ⧇ āĻ•āĻžāĻ°ā§āϝāĻ•āĻžāϰ⧀ āĻŦāϞ āĻ•āϤ?
    1. 200 N
    2. 100 N
    3. 175 N
    4. zero

    Ans. 100 N

  30. āĻāĻ•āϟāĻŋ āĻĒāĻžāĻĨāϰāϕ⧇ āĻ­ā§‚āĻŽāĻŋ āĻĨ⧇āϕ⧇ 45 m āωāρāϚ⧁ āĻĻāĻžāϞāĻžāύ⧇āϰ āωāĻĒāϰ āĻĨ⧇āϕ⧇ āĻ­ā§‚āĻŽāĻŋāϰ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ⧇ \(16 \mathrm{~ms}^{-1}\) āĻŦ⧇āϗ⧇ āύāĻŋāĻ•ā§āώ⧇āĻĒ āĻ•āϰāĻž āĻšāϞ⧋āĨ¤ āĻĒāĻžāĻĨāϰāϟāĻŋāϰ āĻ­ā§‚āĻŽāĻŋāϤ⧇ āĻĒ⧌āĻ›āĻžāϤ⧇ āĻ•āϤ āϏāĻŽāϝāĻŧ āϞāĻžāĻ—āĻŦ⧇?
    1. 2.8 s
    2. 0.4 s
    3. 3 s
    4. 1 s

    Ans. 3 s

āϰāϏāĻžā§Ÿāύ

  1. āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āĻĒā§āϰāĻ­āĻžāĻŦāϕ⧇āϰ āĻ•āĻžāϜ āĻšāϞ-

    1. āϏāĻžāĻŽā§āϝāĻžāĻŦāĻ¸ā§āĻĨāĻž āĻĄāĻžāύ āĻĻāĻŋāϕ⧇ āύ⧇āϝāĻŧāĻž
    2. āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āϏāĻ•ā§āϰāĻŋāϝāĻŧāύ āĻļāĻ•ā§āϤāĻŋ \(\mathrm{E}_{\mathrm{a}}\) āĻ•āĻŽāĻžāύ⧋
    3. āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻāύāĻĨāĻžāϞāĻĒāĻŋ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰāĻž
    4. āϏāĻžāĻŽā§āϝ āĻŽāĻŋāĻļā§āϰāϪ⧇ āĻ‰ā§ŽāĻĒāĻžāĻĻ⧇āϰ % āĻĒāϰāĻŋāĻŽāĻžāύ āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰāĻž

    Ans. āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āϏāĻ•ā§āϰāĻŋāϝāĻŧāύ āĻļāĻ•ā§āϤāĻŋ \(\mathrm{E}_{\mathrm{a}}\) āĻ•āĻŽāĻžāύ⧋

  2. āĻāĻ•āϟāĻŋ āĻšā§āϝāĻžāϞāĻžāχāĻĄ āϞāĻŦāĻŖāϕ⧇ āϘāύ \(\mathbf{H}_{2} \mathrm{SO}_{4}\) āĻ āωāĻ¤ā§āϤāĻĒā§āϤ āĻ•āϰāĻž āĻšāϞ āĻŦ⧇āϗ⧁āύāĻŋ āϧ⧋āϝāĻŧāĻžāϰ āĻ‰ā§ŽāĻĒāĻ¤ā§āϤāĻŋ āϕ⧋āύ āφāϝāĻŧāύ⧇āϰ āωāĻĒāĻ¸ā§āĻĨāĻŋāϤāĻŋ āύāĻŋāĻ°ā§āĻĻ⧇āĻļāĻ•?
    1. \(\mathrm{I}^{-}\)
    2. \(\mathrm{Br}^{-}\)
    3. \(\mathrm{Cl}^{-}\)
    4. \(\mathrm{F}^{-}\)

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

  3. āύāĻŋāĻŽā§āύ⧇āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻĒā§āϰāĻŽāĻžāĻŖ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻāύāĻĨāĻžāϞāĻĒāĻŋ, \(\Delta \mathrm{H}_{\mathrm{R}}^{\circ}\) āĻ•āϤ?
    \(2 \mathrm{C}+3 \mathrm{H}_{2} \rightarrow \mathrm{C}_{2} \mathrm{H}_{6}\)
    āĻ•āĻžāĻ°ā§āĻŦāύ (C), āĻšāĻžāχāĻĄā§āϰ⧋āĻœā§‡āύ (H) āĻāĻŦāĻ‚ āχāĻĨ⧇āύ (CH) āĻāϰ āĻĒā§āϰāĻŽāĻžāĻŖ āĻĻāĻšāύ āϤāĻžāĻĒ,\(\mathbf{\Delta} \mathbf{H}_{\mathbf{C}}^{\circ}\) āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ -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. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āĻŸā§‡āĻĢāϞāύ⧇āϰ āĻŽāύ⧋āĻŽāĻžāϰ?
    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§āϰ⧋āĻŽāĻŋāύ āχāĻĨāĻŋāύ⧇āϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇āĨ¤ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋāϰ āĻ•ā§ŒāĻļāϞ āĻ•āĻŋ?
    1. āϕ⧇āĻ¨ā§āĻĻā§āϰāĻžāĻ•āĻ°ā§āώ⧀ āϝ⧁āϤ
    2. āϕ⧇āĻ¨ā§āĻĻā§āϰāĻžāĻ•āĻ°ā§āώ⧀ āĻĒā§āϰāϤāĻŋāĻ¸ā§āĻĨāĻžāĻĒāύ
    3. āχāϞ⧇āĻ•āĻŸā§āϰāĻ—ā§āϰāĻžāĻšā§€ āϝ⧁āϤ
    4. āχāϞ⧇āĻŸā§āϰāĻ—ā§āϰāĻžāĻšā§€ āĻĒā§āϰāϤāĻŋāĻ¸ā§āĻĨāĻžāĻĒāύ

    Ans. āχāϞ⧇āĻ•āĻŸā§āϰāĻ—ā§āϰāĻžāĻšā§€ āϝ⧁āϤ

  6. \(\mathbf{H}_{2} \mathbf{O}_{2}\) āϕ⧇ \(\mathrm{MnO}_{4}^{-}\) āĻĻā§āĻŦāĻžāϰāĻž āϜāĻžāϰāĻŖ āĻ•āϰāĻž āĻšāϞ⧇ āϕ⧋āώ āĻŦāĻŋāĻ­āĻŦ, \(\mathbf{E}^{\circ}\) Cell
    āĻšāĻŋāϏāĻžāĻŦ āĻ•āϰāĨ¤ āĻ…āĻ°ā§āϧ-āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϗ⧁āϞ⧋ āĻšāϞ-
    \(2 \mathrm{H}^{+}+\mathrm{O}_{2}+2 \mathrm{e}^{-} \rightleftharpoons \mathrm{H}_{2} \mathrm{O}_{2} ; \mathrm{E}^{0}=+0.68 \mathrm{~V}\)
    \(\mathrm{MnO}_{4}^{-}+8 \mathrm{H}^{+}+5 \mathrm{e}^{-}=\mathrm{Mn}^{2+}+4 \mathrm{H}_{2} \mathrm{O} ; \mathrm{E}^{0}=+1.51 \mathrm{~V}\)

    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 āϤāĻžāĻĒāĻŽāĻžāĻ¤ā§āϰāĻžāϝāĻŧ āĻ“ 1 āĻŦāĻžāϝāĻŧ⧁āĻŽāĻ¨ā§āĻĄāϞ⧀āϝāĻŧ āϚāĻžāĻĒ⧇ 1 āĻ•āĻŋāϞ⧋āĻ—ā§āϰāĻžāĻŽ āϜāϞ⧀āϝāĻŧ āĻŦāĻžāĻˇā§āĻĒ⧇āϰ āφāϝāĻŧāϤāύ āĻ•āϤ?
    1. 12 L
    2. 100 L
    3. 1200 L
    4. 1701 L

    Ans. 1701 L

  8. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āĻ•ā§āϝāĻžāύāĻŋāϜāĻžāϰ⧋ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž?
    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•āϟāĻŋ āĻĒā§āϰāĻĨāĻŽ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āĻ…āĻ°ā§āϧāĻžāϝāĻŧ⧁ 15 min āĻšāϞ⧇ āĻšāĻžāϰ āĻ§ā§āϰ⧁āĻŦāĻ• āĻ•āϤ?
    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•āϟāĻŋ āϰ⧋āĻ—ā§€āϰ āϰāĻ•ā§āϤ⧇āϰ āĻ—ā§āϞ⧁āϕ⧋āĻœā§‡āϰ āĻĒāϰāĻŋāĻŽāĻžāĻŖ \(\mathbf{1 0} \mathrm{mmol} \mathbf{L}^{-1}\)āĨ¤āĻŽāĻŋāϞāĻŋāĻ—ā§āϰāĻžāĻŽ/ āĻĄā§‡āϏāĻŋāϞāĻŋāϟāĻžāϰ āĻāĻ•āϕ⧇ āĻāϰ āĻŽāĻžāύ āĻ•āϤ?
    1. 180
    2. 18.0
    3. 1.80
    4. None

    Ans. 180

  11. āĻĸāĻžāϞāĻžāχ āϞ⧌āĻšā§‡ āĻ•āĻžāĻ°ā§āĻŦāύ⧇āϰ āĻĒāϰāĻŋāĻŽāĻžāύ āĻ•āϤ?
    1. \(2.0-4.5 \%\)
    2. \(0.12-0.25 \%\)
    3. \(0.20 \%\)
    4. \(0.25-1.70 \%\)

    Ans. \(2.0-4.5 \%\)

  12. āύāĻŋāĻŽā§āύ⧇āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ āϕ⧋āύāϟāĻŋ āϏāĻ¤ā§āϝ?
    \(\mathrm{SnCl}_{2}+2 \mathrm{FeCl}_{3}=\mathrm{SnCl}_{4}+2 \mathrm{FeCl}_{2}\)

    1. Sn āϜāĻžāϰāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇
    2. Cl āϜāĻžāϰāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇
    3. Fe āϜāĻžāϰāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇
    4. Cl āĻŦāĻŋāϜāĻžāϰāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇

    Ans. Sn āϜāĻžāϰāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇

  13. āφāχāϏ⧋āϟāύ⧇āϰ āωāĻĻāĻžāĻšāϰāĻŖ-
    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§āϰāĻĒāĻžāχāύ⧇ \(\sigma \)-āĻŦāĻ¨ā§āϧāύ āĻāĻŦāĻ‚ \(\pi \) āĻŦāĻ¨ā§āϧāύ āĻāϰ āϏāĻ‚āĻ–ā§āϝāĻž āĻ•āϤ?
    1. 3āϟāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āϧāύ āĻāĻŦāĻ‚ 2āϟāĻŋ \(\pi \)-āĻŦāĻ¨ā§āϧāύ
    2. 6āϟāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āϧāύ āĻāĻŦāĻ‚ 2āϟāĻŋ \(\pi \)-āĻŦāĻ¨ā§āϧāύ
    3. 2āϟāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āϧāύ āĻāĻŦāĻ‚ 2āϟāĻŋ \(\pi \)-āĻŦāĻ¨ā§āϧāύ
    4. 2āϟāĻŋ \(\sigma \)-āĻŦāĻ¨ā§āϧāύ āĻāĻŦāĻ‚ 4āϟāĻŋ \(\pi \)-āĻŦāĻ¨ā§āϧāύ

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

  15. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύ āϜ⧈āĻŦ āϝ⧌āĻ—āϟāĻŋ āĻ†ā§Ÿā§‹āĻĄā§‹āĻĢāϰāĻŽ āĻĒāϰ⧀āĻ•ā§āώāĻž āĻĻ⧇āϝāĻŧ āύāĻž?
    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āϰ āϜāĻ¨ā§āϝ āϏāĻ°ā§āĻŦā§‹āĻšā§āϚ āĻ•āϤāϟāĻŋ āχāĻĨāĻžāϰ āϝ⧌āϗ⧇āϰ āϏāĻŽāĻžāϪ⧁ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?
    1. 3
    2. 4
    3. 5
    4. 6

    Ans. 3

  17. āĻāĻ•āϟāĻŋ āĻ•āĻĒāĻžāϰ (II) āĻĻā§āϰāĻŦāϪ⧇āϰ āĻŽāĻ§ā§āϝ āĻĻāĻŋāϝāĻŧ⧇ āĻ…āĻ°ā§āϧ āϘāĻŖā§āϟāĻž āϝāĻžāĻŦāϤ 10.0 Ampere āĻŦāĻŋāĻĻā§āĻ¯ā§ā§Ž āĻĒā§āϰāĻŦāĻžāĻšāĻŋāϤ āĻ•āϰāϞ⧇ āĻ•āĻŋ āĻĒāϰāĻŋāĻŽāĻžāĻŖ āĻ•āĻĒāĻžāϰ āϏāĻžā§āϚāĻŋāϤ āĻŦāĻž āĻĻā§āϰāĻŦā§€āĻ­ā§‚āϤ āĻšāĻŦ⧇?
    1. 6.3 g
    2. 1.5 g
    3. 0.60 g
    4. None

    Ans. None

  18. āĻāĻ•āϟāĻŋ 1.0M āϏ⧋āĻĄāĻŋāϝāĻŧāĻžāĻŽ āĻšāĻžāχāĻĄā§āϰ⧋āĻ•ā§āϏāĻžāχāĻĄā§‡āϰ āϜāϞ⧀āϝāĻŧ āĻĻā§āϰāĻŦāϪ⧇āϰ 100mL āϕ⧇ āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖāϰ⧂āĻĒ⧇ āύāĻŋāϰāĻĒ⧇āĻ•ā§āώ āĻ•āϰāϤ⧇ āĻ•āϤ āφāϝāĻŧāϤāύ 0.5M āĻ…āĻ•ā§āϏāĻžāϞāĻŋāĻ• āĻāϏāĻŋāĻĄ āĻĒā§āĻ°ā§Ÿā§‹āϜāύ āĻĒāĻĄāĻŧāĻŦ⧇?

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

    Ans. 100 mL

  19. IUPAC āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āύāĻŋāĻŽā§āύ⧇āϰ āϝ⧌āĻ—āϟāĻŋāϰ āύāĻžāĻŽ 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. āύāĻŋāĻšā§‡āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻĒā§āϰāϧāĻžāύ 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. āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āĻ…āϰāĻŦāĻŋāϟāĻžāϞ āχāϞ⧇āĻ•āĻŸā§āϰāύ āφāϗ⧇ āĻĒā§āϰāĻŦ⧇āĻļ āĻ•āϰ⧇?
    1. 4f
    2. 5d
    3. 6p
    4. 7s

    Ans. 4f

  22. āύāĻŋāĻŽā§āύ⧇āϰ āĻŽāĻŋāĻļā§āϰāĻŖāϗ⧁āϞ⧋āϰ āĻŽāĻ§ā§āϝ⧇ āϕ⧋āύāϟāĻŋ āĻŦāĻžāĻĢāĻžāϰ āĻĻā§āϰāĻŦāĻŖ?
    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§āϰāĻŦāϪ⧇āϰ pH āĻ•āϤ? āĻāĻ–āĻžāύ⧇, \(\mathbf{K}_{\mathrm{a}}=1.8 \times 10^{-5}\)
    1. 2.672
    2. 2.772
    3. 2.872
    4. 2.972

    Ans. 2.872

  24. āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āϏāĻ°ā§āĻŦāĻžāϧāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻ• āϝ⧌āĻ— āĻ—āĻ āύ āĻ•āϰ⧇?
    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 āϏāĻžāϞāĻĢāĻžāϰ⧇āϰ āϜāĻžāϰāĻŖ āϏāĻ‚āĻ–ā§āϝāĻž āĻšāϞ-
    1. -2 and -2.5
    2. +2 and +2.5
    3. +4 and +6
    4. +2 and -2

    Ans. +2 and +2.5

  26. āĻŦ⧇āύāϜāĻŋāύ āĻĄāĻžāϝāĻŧāĻžāĻœā§‹āύāĻŋāϝāĻŧāĻžāĻŽ āĻ•ā§āϞ⧋āϰāĻžāχāĻĄā§‡āϰ āϜāϞ⧀āϝāĻŧ āĻĻā§āϰāĻŦāĻŖāϕ⧇ āϤāĻžāĻĒ āĻĻ⧇āϝāĻŧāĻž āĻšāϞ⧇ āĻ•āĻŋ āϘāĻŸā§‡?
    1. Formation of phenol
    2. Formation of nitrobenzene
    3. Formation of diphenyl
    4. Formation of phenylhydrazine

    Ans. Formation of phenol

  27. HCHO āĻ…āϪ⧁āϤ⧇ āĻ•āĻžāĻ°ā§āĻŦāύ⧇āϰ āĻšāĻžāχāĻŦā§āϰāĻŋāĻĄāĻžāχāĻœā§‡āĻļāύ āĻšāϞ-
    1. sp
    2. \(\mathrm{sp}^{2}\)
    3. \(\mathrm{sp}^{3}\)
    4. None

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

  28. āĻŽāĻžāϰāĻ•āĻžāϰ⧀ (II) āĻ…āĻ•ā§āϏāĻžāχāĻĄ āϤāĻžāĻĒ⧇ āύāĻŋāĻŽā§āύ⧇āϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ…āύ⧁āϏāĻžāϰ⧇ āĻ­āĻžāĻ™ā§āĻ—āϞ⧇ āĻ āĻĒā§āϰāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϟāĻŋāϰ āϏāĻžāĻŽā§āϝāĻžāĻ‚āĻ•āϕ⧇ āĻ•āĻŋāĻ­āĻžāĻŦ⧇ āĻĒā§āϰāĻ•āĻžāĻļ āĻ•āϰāĻž āϝāĻžāϝāĻŧ?
    \(2 \mathrm{HgO}(\mathrm{s}) \rightleftharpoons 2 \mathrm{Hg}(l)+\mathrm{O}_{2}(\mathrm{~g})\)

    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. āύāĻŋāĻšā§‡āϰ āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāϰ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻžāϝāĻŧ X-āϕ⧇ āĻ•āĻŋ āĻŦāϞāĻž āϝāĻžāϝāĻŧ?
    \({ }_{7}^{14} \mathrm{~N}+\alpha \rightarrow { }_{8}^{17} \mathrm{~O}+\mathrm{X}\)
    1. Proton
    2. \(\beta\)-particle
    3. \(\gamma\)-ray
    4. Neutron

    Ans. Proton

  30. āĻĢ⧇āύāϞ āĻ“ āĻāϞāϕ⧋āĻšāϞ āωāĻ­āϝāĻŧ⧇āϰ āϜāĻ¨ā§āϝ āύāĻŋāĻŽā§āύ⧇āϰ āϕ⧋āύāϟāĻŋ āϏāĻ¤ā§āϝ?
    1. \(\mathrm{PCl}_{5}\) āĻāϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇
    2. āϰāĻžāχāĻŽāĻžāϰ āϟāĻžāχāĻŽā§āϝāĻžāύ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻĒā§āϰāĻĻāĻ°ā§āĻļāύ āĻ•āϰ⧇
    3. āĻĒāĻžāύāĻŋāϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇
    4. āϞ⧁āĻ•āĻžāϏ āĻŦāĻŋāĻ•āĻžāϰāϕ⧇āϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇

    Ans. \(\mathrm{PCl}_{5}\) āĻāϰ āϏāĻžāĻĨ⧇ āĻŦāĻŋāĻ•ā§āϰāĻŋāϝāĻŧāĻž āĻ•āϰ⧇

āĻ—āĻŖāĻŋāϤ

  1. (3, -1) āĻāĻŦāĻ‚ (5, 2) āĻŦāĻŋāĻ¨ā§āĻĻ⧁āĻĻā§āĻŦāϝāĻŧ⧇āϰ āϏāĻ‚āϝ⧇āĻžāĻ—āĻ•āĻžāϰ⧀ āϏāϰāϞāϰ⧇āĻ–āĻžāϕ⧇ 3:4 āĻ…āύ⧁āĻĒāĻžāϤ⧇ āĻŦāĻšāĻŋāσāĻ¸ā§āĻĨāĻ­āĻžāĻŦ⧇ āĻŦāĻŋāĻ­āĻ•ā§āϤāĻ•āĻžāϰ⧀ āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϰ āĻ¸ā§āĻĨāĻžāύāĻžāĻ™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. āϕ⧋āύ⧋āϟāĻŋāχ āύ⧟

    Ans. āϕ⧋āύ⧋āϟāĻŋāχ āύ⧟

  2. \(f(x)=\sqrt{x^{2}-5 x+6}\) āĻĢāĻžāĻ‚āĻļāύ⧇āϰ āĻĄā§‹āĻŽā§‡āχāύ āĻāĻŦāĻ‚ āϰ⧇āĻžā§āϜ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡-
    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 āφāĻĻāĻŋāĻŦ⧇āĻ— āĻāĻŦāĻ‚ āĻ­ā§‚āĻŽāĻŋāϰ āϏāĻžāĻĨ⧇ \(30^{\circ}\) āϕ⧋āϪ⧇ āĻŦāĻ¸ā§āϤ⧁ āύāĻŋāĻ•ā§āώ⧇āĻĒ āĻ•āϰāĻž āĻšāϞ⧋āĨ¤ āχāĻšāĻžāϰ āφāύ⧁āĻ­ā§‚āĻŽāĻŋāĻ• āĻĒāĻžāĻ˛ā§āϞāĻž-

    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. \(\cot \theta+\sqrt{3}=2 \operatorname{cosec} \theta\) āϏāĻŽā§€āĻ•āϰāϪ⧇āϰ āϏāĻŽāĻžāϧāĻžāύ-
    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āϰ āĻŦāĻŋāĻĒāϰ⧀āϤ āĻŽā§āϝāĻžāĻŸā§āϰāĻŋāĻ•ā§āϏ-

    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 āϜāύ āĻŽāĻšāĻŋāϞāĻžāϏāĻš 10 āĻŦā§āϝāĻ•ā§āϤāĻŋāϰ āĻŽāĻ§ā§āϝ āĻĨ⧇āϕ⧇ 5 āϜāύ⧇āϰ āĻāĻ•āϟāĻŋ āĻ•āĻŽāĻŋāϟāĻŋ āĻ—āĻ āύ āĻ•āϰāϤ⧇ āĻšāĻŦ⧇ āϝāĻžāϤ⧇ āĻ…āĻ¨ā§āϤāϤ āĻāĻ•āϜāύ āĻŽāĻšāĻŋāϞāĻž āĻ…āĻ¨ā§āϤāĻ°ā§āĻ­ā§‚āĻ•ā§āϤ āĻĨāĻžāĻ•āĻŦ⧇āĨ¤ āĻ•āϤ āĻŦāĻŋāĻ­āĻŋāĻ¨ā§āύ āĻĒā§āϰāĻ•āĻžāϰ⧇ āĻ āĻ•āĻŽāĻŋāϟāĻŋ āĻ—āĻ āύ āĻ•āϰāĻž āϝ⧇āϤ⧇ āĻĒāĻžāϰ⧇?
    1. 1440
    2. 246
    3. 120
    4. 60

    Ans. 246

  8. \(\left|\begin{array}{lll}0 & 3 & 2 x+7 \\ 2 & 7 x & 9+5 x \\ 0 & 0 & 2 x+5\end{array}\right|=0\) āĻšāϞ⧇, x āĻāϰ āĻŽāĻžāύ
    1. \(-\frac{9}{2}\)
    2. \(-\frac{7}{2}\)
    3. \(-\frac{5}{2}\)
    4. 0

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

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

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

  10. āϕ⧋āύ⧋ āĻŦāĻŋāĻ¨ā§āĻĻ⧁āϤ⧇ P āĻāĻŦāĻ‚ 2P āĻŽāĻžāύ⧇āϰ āĻĻ⧁āχāϟāĻŋ āĻŦāϞ āĻ•ā§āϰāĻŋāϝāĻŧāĻžāĻļā§€āϞāĨ¤ āĻĒā§āϰāĻĨāĻŽ āĻŦāϞāϟāĻŋāϕ⧇ āĻĻā§āĻŦāĻŋāϗ⧁āĻŖ āĻ•āϰ⧇ āĻĻā§āĻŦāĻŋāϤ⧀āϝāĻŧāϟāĻŋāϰ āĻŽāĻžāύ ā§Ē āĻāĻ•āĻ• āĻŦ⧃āĻĻā§āϧāĻŋ āĻ•āϰāĻž āĻšāϞ⧇, āϤāĻžāĻĻ⧇āϰ āϞāĻŦā§āϧāĻŋāϰ āĻĻāĻŋāĻ• āĻ…āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāĻŋāϤ āĻĨāĻžāϕ⧇āĨ¤ P āĻāϰ āĻŽāĻžāύ-
    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§āĻŦāĻžāϰāĻž āφāĻŦāĻĻā§āϧ āĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ-
    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āϰ āϏāĻžāĻĨ⧇ āϕ⧋āύ āĻ¨ā§āϝ⧂āύāϤāĻŽ āĻĻā§āĻŦāĻŋāĻŽāĻŋāĻ• āϏāĻ‚āĻ–ā§āϝāĻž āϝ⧇āĻžāĻ— āĻ•āϰāϞ⧇ āϝ⧇āĻžāĻ—āĻĢāϞ 16 āĻĻā§āĻŦāĻžāϰāĻž āĻŦāĻŋāĻ­āĻžāĻœā§āϝ āĻšāĻŦ⧇?
    1. 10011
    2. 111
    3. 110
    4. 11

    Ans. 11

  13. \(-\frac{1}{2}-\frac{1}{2.2^{2}}-\frac{1}{3.2^{3}}-\frac{1}{4.2^{4}}-\ldots \ldots\) āϧāĻžāϰāĻžāϟāĻŋāϰ āϏāĻŽāĻˇā§āϟāĻŋ-
    1. -2 ln 2
    2. – ln 2
    3. -2 e
    4. – e

    Ans. – ln 2

  14. āĻŦāĻžāĻ¸ā§āϤāĻŦ āϏāĻ‚āĻ–ā§āϝāĻžāϝāĻŧ \(\frac{1}{|3 x+1|} \geq 5\) āĻ…āϏāĻŽāϤāĻžāϟāĻŋāϰ āϏāĻŽāĻžāϧāĻžāύ-
    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§āĻĻ⧁āĻ—āĻžāĻŽā§€ āĻāĻŦāĻ‚ \(x^{2}+y^{2}-6 x+8 y=0\) āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āϏāĻžāĻĨ⧇ āĻāĻ•āϕ⧇āĻ¨ā§āĻĻā§āϰāĻŋāĻ• āĻŦ⧃āĻ¤ā§āϤ⧇āϰ āϏāĻŽā§€āĻ•āϰāĻŖ-
    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 āĻšāϞ⧇, 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āϰ āĻŦāĻŋāĻ¸ā§āϤ⧃āϤāĻŋāϤ⧇ \(\mathbf{x}^{7}\) āĻāϰ āϏāĻšāĻ—-
    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‚ \(z_{2}=3+i\) āĻšāϞ⧇, \(\mathbf{z}_{1} \overline{\mathbf{z}}_{2}\) āĻāϰ āĻŽāĻĄā§āϞāĻžāϏ-
    1. 6
    2. \(5 \sqrt{2}\)
    3. 7
    4. \(5 \sqrt{3}\)

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

  20. āĻĒā§‚āĻ°ā§āĻŖāϏāĻ‚āĻ–ā§āϝāĻž āϏāĻšāĻ—āϏāĻš āĻĻā§āĻŦāĻŋāĻŽāĻžāĻ¤ā§āϰāĻŋāĻ• āϏāĻŽā§€āĻ•āϰāĻŖ, āϝāĻžāϰ āĻāĻ•āϟāĻŋ āĻŽā§‚āϞ \(\sqrt{-5}-1\)
    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•āϟāĻŋ āφāϝāĻŧāϤāĻ•ā§āώ⧇āĻ¤ā§āϰ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ 20% āĻŦ⧃āĻĻā§āϧāĻŋ āĻāĻŦāĻ‚ āĻĒā§āϰāĻ¸ā§āĻĨ 20% āĻšā§āϰāĻžāϏ āĻ•āϰāϞ⧇ āĻāϰ āĻ•ā§āώ⧇āĻ¤ā§āϰāĻĢāϞ⧇āϰ āĻļāϤāĻ•āϰāĻž āĻĒāϰāĻŋāĻŦāĻ°ā§āϤāύ-
    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 āϏāϰāϞāϰ⧇āĻ–āĻžāĻĻā§āĻŦāϝāĻŧ⧇āϰ āϛ⧇āĻĻāĻŦāĻŋāĻ¨ā§āĻĻ⧁āĻ—āĻžāĻŽā§€, x āĻ…āĻ•ā§āώ⧇āϰ āϏāĻŽāĻžāĻ¨ā§āϤāϰāĻžāϞ āϏāĻŽā§€āĻ•āϰāĻŖ-
    1. \( y=2 \)
    2. \( 2y=2 \)
    3. \( x=1 \)
    4. \( x+3=0 \)

    Ans. \( y=2 \)

  23. āĻāĻ•āĻ• āĻŦā§āϝāĻžāϏāĻžāĻ°ā§āϧ⧇āϰ āĻŦ⧃āĻ¤ā§āϤ⧇ āĻ…āϞāĻŋāĻ–āĻŋāϤ āĻāĻ•āϟāĻŋ āϏāĻŽāĻŦāĻžāĻšā§ āĻ¤ā§āϰāĻŋāϭ⧁āĻœā§‡āϰ āĻŦāĻžāĻšā§āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ-
    1. \(\frac{3}{2}\) units
    2. \(\frac{\sqrt{3}}{2}\) units
    3. \(\sqrt{3}\) units
    4. 1 units

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

  24. āϧāύāĻžāĻ¤ā§āĻŽāĻ• x āĻāϰ āϜāĻ¨ā§āϝ \(\mathbf{F}(\mathbf{x})=\int_{1}^{x} \ln t \mathbf{d} \mathbf{t}\) āĻšāϞ⧇, \(\mathbf{F}^{\prime}(\mathbf{x})=?\)
    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 āĻĨ⧇āϕ⧇ āĻĒ⧁āύāϰāĻžāĻŦ⧃āĻ¤ā§āϤāĻŋ āĻ›āĻžāĻĄāĻŧāĻž āϤāĻŋāύ āĻ…āĻ™ā§āϕ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻž āĻ—āĻ āύ āĻ•āϰāĻž āĻšāϞ⧇, āĻ•āϝāĻŧāϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻžāϰ āĻŽāĻžāύ 100 āĻĨ⧇āϕ⧇ 500 āĻāϰ āĻŽāĻ§ā§āϝ⧇?
    1. 240
    2. 60
    3. 120
    4. 480

    Ans. 120

  26. ABC āĻ¤ā§āϰāĻŋāϭ⧁āĻœā§‡āϰ BC, CA āĻ“ AB āĻŦāĻžāĻšā§āϰ āĻŽāĻ§ā§āϝāĻŦāĻŋāĻ¨ā§āĻĻ⧁āϗ⧁āϞ⧋ āϝāĻĨāĻžāĻ•ā§āϰāĻŽā§‡ D,E āĻ“ F āĻšāϞ⧇-
    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. āϝāĻĻāĻŋ f(x) = (x – 2) (1-x) āĻšāϝāĻŧ, āϤāĻŦ⧇ f(f(3)) āĻāϰ āĻŽāĻžāύ-
    1. 9
    2. -12
    3. 12
    4. 8

    Ans. -12

  28. 1, 0, 2 āĻĻā§āĻŦāĻžāϰāĻž āĻ—āĻ āĻŋāϤ āϤāĻŋāύ āĻ…āĻ™ā§āĻ•āĻŦāĻŋāĻļāĻŋāĻˇā§āϟ āϏāĻ‚āĻ–ā§āϝāĻžāϗ⧁āϞ⧋ āĻšāϤ⧇ āĻĻ⧈āĻŦāϚāϝāĻŧāύ āĻĒāĻĻā§āϧāϤāĻŋāϤ⧇ āĻāĻ•āϟāĻŋ āϏāĻ‚āĻ–ā§āϝāĻž āύ⧇āϝāĻŧāĻž āĻšāϞ⧇ āϏāĻ‚āĻ–ā§āϝāĻžāϟāĻŋ 10 āĻĻā§āĻŦāĻžāϰāĻž āĻŦāĻŋāĻ­āĻžāĻœā§āϝ āĻšāĻ“āϝāĻŧāĻžāϰ āϏāĻŽā§āĻ­āĻžāĻŦāύāĻž-
    1. \(\frac{1}{2}\)
    2. \(\frac{1}{3}\)
    3. \(\frac{2}{9}\)
    4. \(\frac{1}{6}\)

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

  29. \(x^{2}-4 x+12 y-40=0\) āĻĒāϰāĻžāĻŦ⧃āĻ¤ā§āϤ⧇āϰ āωāĻĒāϕ⧇āĻ¨ā§āĻĻā§āϰāĻŋāĻ• āϞāĻŽā§āĻŦ⧇āϰ āĻĻ⧈āĻ°ā§āĻ˜ā§āϝ-
    1. 12
    2. 8
    3. 6
    4. 4

    Ans. 12

  30. x āĻāϰ āϕ⧋āύ āĻŽāĻžāύ⧇āϰ āϜāĻ¨ā§āϝ \(y=x+\frac{1}{x}\) āĻŦāĻ•ā§āϰāϰ⧇āĻ–āĻžāϟāĻŋāϰ āĻĸāĻžāϞ āĻļā§‚āĻ¨ā§āϝ āĻšāĻŦ⧇?
    1. \(\pm \frac{3}{2}\)
    2. \(\pm 2\)
    3. 1
    4. \(\pm 1\)

    Ans. \(\pm 1\)

āĻœā§€āĻŦāĻŦāĻŋāĻœā§āĻžāĻžāύ

  1. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋāϰ āϏāĻžā§āϚāĻŋāϤ āĻ–āĻžāĻĻā§āϝ āĻĢā§āϞ⧋āϰāĻŋāĻĄāĻŋāϝāĻŧāĻžāύ āĻ¸ā§āϟāĻžāĻ°ā§āϚ?

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

    Ans. Polysiphonia

  2. Jellyfish āϕ⧋āύ āĻĒāĻ°ā§āĻŦ⧇āϰ āĻĒā§āϰāĻžāĻŖā§€?
    1. Annelida
    2. Cnidaria
    3. Porifera
    4. Arthropoda

    Ans. Cnidaria

  3. āϟāĻŋāĻ¸ā§āϝ⧁ āĻ•āĻžāϞāϚāĻžāϰ āĻĒā§āϰāϝ⧁āĻ•ā§āϤāĻŋāϰ āϜāύāĻ• āϕ⧇?
    1. āĻŽā§‡āĻ¨ā§āĻĄā§‡āϞ
    2. āĻšāĻžāϚāĻŋāύāϏāύ
    3. āĻ˛ā§āϝāĻžāĻŽāĻžāĻ°ā§āĻ•
    4. āĻšā§āϝāĻžāĻŦāĻžāϰāĻ˛ā§āϝāĻžāĻ¨ā§āĻĄ

    Ans. āĻšā§āϝāĻžāĻŦāĻžāϰāĻ˛ā§āϝāĻžāĻ¨ā§āĻĄ

  4. āϏāĻ‚āĻ•ā§āϰāĻŽāĻŖāĻ•ā§āώāĻŽ āĻ­āĻžāχāϰāĻžāϏ āĻ•āĻŖāĻžāϕ⧇ āĻŦāϞāĻž āĻšāϝāĻŧ-
    1. Nucleocapside
    2. Virions
    3. Capsid
    4. Capsomere

    Ans. Virions

  5. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āφāĻĻāĻŋāϕ⧋āώ -āĻāϰ āωāĻĻāĻžāĻšāϰāĻŖ?
    1. Saccharomyces
    2. Penicillium
    3. Agaricus
    4. Bacillus

    Ans. Bacillus

  6. Species Plantarum’-āĻāϰ āϰāϚāϝāĻŧāĻŋāϤāĻž āĻšāϞ⧇āύ-
    1. āϜāĻ°ā§āϜ āĻŦ⧇āύāĻĨāĻžāĻŽ
    2. āĻ•ā§āϝāĻžāϰ⧋āϞāĻžāϏ āϞāĻŋāύāĻŋāϝāĻŧāĻžāϏ
    3. āĻ…ā§āϝāĻžāĻĄāϞāĻĢ āĻāĻ™ā§āĻ—āϞāĻžāϰ
    4. āĻŽāĻžāχāϕ⧇āϞ āĻ…ā§āϝāĻžāĻĄāĻžāύāϏāύ

    Ans. āĻ•ā§āϝāĻžāϰ⧋āϞāĻžāϏ āϞāĻŋāύāĻŋāϝāĻŧāĻžāϏ

  7. Pteris-āĻāϰ āĻ—ā§āϝāĻžāĻŽā§‡āĻŸā§‹āĻĢāĻžāχāϟāϕ⧇ āĻŦāϞāĻž āĻšāϝāĻŧ-
    1. āĻ—ā§āϝāĻžāĻŽā§‡āĻŸā§‹āĻĢā§‹āϰ
    2. āĻ¸ā§āĻŸā§‹āĻŽāĻŋāϝāĻŧāĻžāĻŽ
    3. āĻĒā§āϰ⧋āĻĨā§āϝāĻžāϞāĻžāϏ
    4. āĻĒā§āϰ⧋āĻŸā§‹āύ⧇āĻŽāĻž

    Ans. āĻĒā§āϰ⧋āĻĨā§āϝāĻžāϞāĻžāϏ

  8. Malvaceae āĻ—ā§‹āĻ¤ā§āϰ⧇āϰ āĻĒ⧁āĻ‚āĻ¸ā§āϤāĻŦāϕ⧇āϰ āĻ—āĻ āύ āĻ•āĻŋ?
    1. āĻŸā§‡āĻŸā§āϰāĻžāĻĄāĻŋāύ⧇āĻŽāĻžāϏ
    2. āĻĻā§āĻŦāĻŋāϗ⧁āĻšā§āĻ›āĻ•
    3. āĻāĻ•āϗ⧁āĻšā§āĻ›āĻ•
    4. āĻĻāϞāϞāĻ—ā§āύ

    Ans. āĻāĻ•āϗ⧁āĻšā§āĻ›āĻ•

  9. āĻ…āϏāĻŽā§āĻĒā§‚āĻ°ā§āĻŖ āĻĒā§āϰāĻ•āϟāϤāĻž āĻšāϞ⧇ āĻŽāύ⧋āĻšāĻžāχāĻŦā§āϰāĻŋāĻĄ āĻ•ā§āϰāϏ⧇āϰ \(\mathbf{F}_{2}\) āϜāύ⧁āϤ⧇ āĻĢāĻŋāύ⧋āϟāĻžāχāĻĒ⧇āϰ āĻ…āύ⧁āĻĒāĻžāϤ āĻšāϝāĻŧ-
    1. 3:1
    2. 9:3:3:1
    3. 12:3:1
    4. 1:2:1

    Ans. 1:2:1

  10. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋāϕ⧇ āĻœā§€āĻŦāĻ¨ā§āϤ āĻœā§€āĻŦāĻžāĻļā§āĻŽ āĻŦāϞāĻž āĻšāϝāĻŧ?
    1. Ficus
    2. Navicula
    3. Cycas
    4. Hibiscus

    Ans. Cycas

  11. āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āĻ•ā§āώ⧁āĻĻā§āϰāĻžāĻ™ā§āĻ—āϟāĻŋ āĻ—ā§āϰāĻžāύāĻžāĻŽ āϧāĻžāϰāĻŖ āĻ•āϰ⧇?
    1. āĻ•ā§āϞ⧋āϰ⧋āĻĒā§āϞāĻžāĻ¸ā§āϟ
    2. āϰāĻžāχāĻŦā§‹āϏ⧋āĻŽ
    3. āϞāĻžāχāϏ⧋āϏ⧋āĻŽ
    4. āĻŽāĻžāχāĻŸā§‹āĻ•āĻ¨ā§āĻĄā§āϰāĻŋāϝāĻŧāĻž

    Ans. āĻ•ā§āϞ⧋āϰ⧋āĻĒā§āϞāĻžāĻ¸ā§āϟ

  12. āϕ⧋āώ āĻŦāĻŋāĻ­āĻžāϜāύ⧇āϰ āϕ⧋āύ āĻĒāĻ°ā§āϝāĻžāϝāĻŧ⧇ āϏāĻŋāĻ¨ā§āϝāĻžāĻĒāϏāĻŋāϏ āϘāĻŸā§‡?
    1. āϞ⧇āĻĒā§āĻŸā§‹āϟāĻŋāύ
    2. āϜāĻžāχāĻ—ā§‹āϟāĻŋāύ
    3. āĻĒā§āϝāĻžāĻ•āĻžāχāϟāĻŋāύ
    4. āĻĄāĻŋāĻĒā§āϞ⧋āϟāĻŋāύ

    Ans. āϜāĻžāχāĻ—ā§‹āϟāĻŋāύ

  13. āĻĒāϰāĻŋāĻĒāĻ• āĻĒāĻ°ā§āϝāĻžāϝāĻŧ⧇ āύāĻŋāĻšā§‡āϰ āϕ⧋āύ āϕ⧋āώ⧇ āύāĻŋāωāĻ•ā§āϞāĻŋāϝāĻŧāĻžāϏ āĻĨāĻžāϕ⧇ āύāĻž?
    1. āϏāĻŋāĻ­āύāϞ
    2. āĻ¸ā§āĻŸā§‹āĻŽāĻžāϟāĻžāϞ āϏ⧇āϞ
    3. āϜāĻžāχāϞ⧇āĻŽ āĻĢāĻžāχāĻŦāĻžāϰ
    4. āĻĢā§āϞ⧋āϝāĻŧ⧇āĻŽ āĻĢāĻžāχāĻŦāĻžāϰ

    Ans. āϏāĻŋāĻ­āύāϞ

  14. āϚāĻ•ā§ā§°ā§€āϝāĻŧ āĻĢāĻŸā§‹āĻĢāϏāĻĢāϰāĻžāχāϞ⧇āĻļāύ⧇āϰ āĻāĻ• āϚāĻ•ā§āϰ⧇ āĻ•āϤāϟāĻŋ ATP āϤ⧈āϰāĻŋ āĻšāϝāĻŧ?
    1. 1
    2. 2
    3. 3
    4. 4

    Ans. 1

  15. āĻŽāĻžāύ⧁āώ⧇āϰ āĻĻāĻļāĻŽ āĻ•āϰ⧋āϟāĻŋāĻ• āĻ¸ā§āύāĻžāϝāĻŧ⧁āϰ āύāĻžāĻŽ āĻ•āĻŋ?
    1. āĻ…āĻĒāϟāĻŋāĻ•
    2. āϭ⧇āĻ—āĻžāϏ
    3. āĻ…āĻĄāĻŋāϟāϰāĻŋ
    4. āĻšāĻžāχāĻĒā§‹āĻ—ā§āϞ⧋āϏāĻžāϞ

    Ans. āϭ⧇āĻ—āĻžāϏ

  16. āϕ⧋āύāϟāĻŋ āύ⧇āĻĢā§āϰāύ⧇āϰ āĻ…āĻ‚āĻļ āύāϝāĻŧ?
    1. Renal pelvis
    2. Glomerulus
    3. Loop of Henle
    4. Collecting duct

    Ans. Renal pelvis

  17. āϕ⧋āύ āĻšāϰāĻŽā§‹āύāϟāĻŋāϰ āĻ‰ā§ŽāϏ āĻĒāĻŋāϟ⧁āχāϟāĻžāϰāĻŋ āĻ—ā§āϰāĻ¨ā§āĻĨāĻŋ āύāϝāĻŧ?
    1. Progesteron
    2. FSH
    3. LH
    4. Oxytocin

    Ans. Progesteron

  18. āϕ⧋āύ āĻĒā§āϰāĻžāĻŖā§€āϟāĻŋ āĻ–āĻžāĻĻā§āϝ āĻļāĻŋāĻ•āϞ⧇āϰ āϤ⧃āϤ⧀āϝāĻŧ āĻ¸ā§āϤāϰ⧇?
    1. Cow
    2. Tiger
    3. Caterpillar
    4. Elephant

    Ans. Tiger

  19. āĻŦ⧃āĻ•ā§āϕ⧇āϰ āϕ⧋āύ āĻ…āĻ‚āĻļ⧇ Filtration āĻšāϝāĻŧ?
    1. āĻšā§‡āύāϞāĻŋāϰ āϞ⧁āĻĒ
    2. āĻ—ā§āϞ⧋āĻŽā§‡āϰ⧁āϞāĻžāϏ
    3. āĻ—ā§‹āĻĄāĻŧāĻžāĻĻ⧇āĻļā§€āϝāĻŧ āĻĒā§āϝāĻžāϚāĻžāύ⧋ āύāĻžāϞāĻŋāĻ•āĻž
    4. āĻŽā§‚āĻ¤ā§āϰāĻĨāϞāĻŋ

    Ans. āĻ—ā§āϞ⧋āĻŽā§‡āϰ⧁āϞāĻžāϏ

  20. āĻŽāĻžā§Ÿā§‹āϏāĻŋāϏ āϕ⧋āώ āĻŦāĻŋāĻ­āĻžāϜāύ āϕ⧋āĻĨāĻžāϝāĻŧ āĻšāϝāĻŧ?
    1. āĻĢ⧁āϏāĻĢ⧁āϏ
    2. āϝ⧌āύ āϕ⧋āώ
    3. āϝāĻ•ā§ƒā§Ž
    4. āĻ…āĻ¸ā§āĻĨāĻŋ

    Ans. āϝ⧌āύ āϕ⧋āώ

  21. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋāϕ⧇ āĻŽāĻžāĻ¸ā§āϟāĻžāϰ āĻ—ā§āĻ˛ā§āϝāĻžāĻ¨ā§āĻĄ āĻŦāϞāĻž āĻšāϝāĻŧ?
    1. Pituitary Gland
    2. Thyroid Gland
    3. Parotid Gland
    4. Lymph Gland

    Ans. Pituitary Gland

  22. āϕ⧋āύ āϰāĻ•ā§āϤ⧇āϰ āĻ—ā§āϰ⧁āĻĒāϕ⧇ “Universal Donor” āĻŦāϞāĻž āĻšāϝāĻŧ?
    1. AB
    2. B
    3. O
    4. A

    Ans. O

  23. āĻŽāĻžāύ⧁āώ⧇āϰ āĻ…āĻŸā§‹āϏ⧋āĻŽ āĻ•āϤ⧋ āĻœā§‹āĻĄāĻŧāĻž?
    1. 44
    2. 23
    3. 24
    4. 22

    Ans. 22

  24. Platypus āϕ⧋āĻĨāĻžāϝāĻŧ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?
    1. Australia
    2. Oriental Region
    3. Africa
    4. Bangladesh

    Ans. Australia

  25. āϕ⧋āϞāĻžāĻœā§‡āύ āĻāĻ• āϧāϰāύ⧇āϰ-
    1. āĻļāĻ°ā§āĻ•āϰāĻž
    2. āφāĻŽāĻŋāώ
    3. āĻ–āύāĻŋāϜ āĻĒāĻĻāĻžāĻ°ā§āĻĨ
    4. āϚāĻ°ā§āĻŦāĻŋ

    Ans. āφāĻŽāĻŋāώ

  26. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻ•āĻžāϞāĻŽā§‡āĻ˜ā§‡āϰ āĻŦ⧈āĻœā§āĻžāĻžāύāĻŋāĻ• āύāĻžāĻŽ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. Andrographis paniculata
    2. Bacopa monnieri
    3. Centella asiatica
    4. Ocimum sanctum

    Ans. Andrographis paniculata

  27. Amoeba āĻāϰ āϚāϞāύ āĻ…āĻ™ā§āϗ⧇āϰ āύāĻžāĻŽ āĻ•āĻŋ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŽāĻžāχāĻ•ā§āϰ⧋āĻ­āĻŋāϞāĻžāχ
    2. āϏāĻŋāĻ“āĻĄā§‹āĻĒāĻĒāĻžāĻĄāĻŋāϝāĻŧāĻž
    3. āϏāĻŋāϞāĻŋāϝāĻŧāĻž
    4. āĻĢā§āϞāĻžāĻœā§‡āϞāĻž

    Ans. āϏāĻŋāĻ“āĻĄā§‹āĻĒāĻĒāĻžāĻĄāĻŋāϝāĻŧāĻž

  28. āϕ⧋āύ āĻĒā§āϰāĻžāĻŖā§€ āφāĻŽāĻžāĻļāϝāĻŧ āϏ⧃āĻˇā§āϟāĻŋ āĻ•āϰ⧇?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. Wuchereria bancrofti
    2. Aedes
    3. Entamoeba
    4. Ascaris

    Ans. Entamoeba

  29. āϕ⧇ āĻ•āĻ¨ā§āϟāĻŋāύ⧇āĻ¨ā§āϟāĻžāϞ āĻĄā§āϰāĻŋāĻĢāϟ āϏāĻŽā§āĻĒāĻ°ā§āϕ⧇ āφāϧ⧁āύāĻŋāĻ• āϧāĻžāϰāĻŖāĻž āĻĻ⧇āύ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ“āϝāĻŧ⧇āϜāύāĻžāϰ
    2. āĻĄāĻžāϰāωāχāύ
    3. āĻĢā§āϞ⧇āϟāĻžāϰ
    4. āĻŦ⧇āĻ•āύ

    Ans. āĻ“āϝāĻŧ⧇āϜāύāĻžāϰ

  30. āϕ⧋āύāϟāĻŋ āĻ—ā§āϰāĻŋāύ āĻšāĻžāωāϏ āĻ—ā§āϝāĻžāϏ āύāϝāĻŧ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. \(\mathrm{SO}_{2}\)
    2. \(\mathrm{CH}_{4}\)
    3. \(\mathrm{CO}_{2}\)
    4. \(\mathrm{H}_{2} \mathrm{O}\)

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

āĻŦāĻžāĻ‚āϞāĻž

  1. āĻĒā§āϰāϤāĻŋāĻˇā§āĻ āĻž āϞāĻžāĻ­ āĻ•āϰ⧇āϛ⧇ āϝ⧇-
    1. āĻĒā§āϰāϤāĻŋāĻˇā§āĻ āĻŋāϤ
    2. āϏāĻĢāϞ
    3. āϞāĻŦā§āϧāĻĒā§āϰāϤāĻŋāĻˇā§āĻ 
    4. āĻĒā§āϰāϤāĻŋāĻˇā§āĻ āĻžāϞāĻŦā§āϧ

    Ans. āϞāĻŦā§āϧāĻĒā§āϰāϤāĻŋāĻˇā§āĻ 

  2. ‘āĻŦ⧁āĻĻā§āϧāĻŋ’ āĻļāĻŦā§āĻĻāϟāĻŋāϰ āĻ āĻŋāĻ• āĻĒā§āϰāĻ•ā§ƒāϤāĻŋ āĻ“ āĻĒā§āϰāĻ¤ā§āϝāϝāĻŧ-
    1. āĻŦ⧁āĻĻ + āϧāĻŋ
    2. āĻŦ⧁āϧ + āĻĻāĻŋ
    3. ✓āĻŦ⧁āĻ§ā§ + āϤāĻŋ
    4. āĻŦ⧁āĻĻā§āϧ + āχ

    Ans. ✓āĻŦ⧁āĻ§ā§ + āϤāĻŋ

  3. ‘āĻāĻ• āϏāĻŽāϝāĻŧ āϏ⧂āĻ°ā§āϝāϕ⧇ āĻĸ⧇āϕ⧇ āĻ…āύ⧇āĻ• āĻŽā§‡āĻ˜ā§‡āϰ …’ āĻļā§‚āĻ¨ā§āϝāĻ¸ā§āĻĨāĻžāύ⧇āϰ āĻļāĻŦā§āĻĻāϟāĻŋ āĻšāĻšā§āϛ⧇-
    1. āϰāĻžāĻļāĻŋ
    2. āĻĻāϞ
    3. āĻĒāĻžāĻ–āĻŋ
    4. āĻĒāĻžāϞāĻ•

    Ans. āĻĒāĻžāϞāĻ•

  4. ‘āφāϏāϞ āĻ•āĻĨāĻž āĻāχ āϝ⧇ āĻŽāĻžāύ⧁āώ⧇āϰ āĻĻ⧇āĻšāĻŽāύ⧇āϰ āϏāĻ•āϞ āĻĒā§āϰāĻ•āĻžāϰ āĻ•ā§āϰāĻŋāϝāĻŧāĻžāϰ āĻŽāĻ§ā§āϝ⧇ āĻ•ā§āϰ⧀āĻĄāĻŧāĻž āĻļā§āϰ⧇āĻˇā§āĻ  āϕ⧇āύāύāĻž āϤāĻž āωāĻĻā§āĻĻ⧇āĻļā§āϝāĻšā§€āύ’ āωāĻĻā§āϧ⧃āϤāĻžāĻ‚āĻļ⧇ āĻĒā§āĻ°ā§Ÿā§‹āϜāύ⧀āϝāĻŧ āϝāϤāĻŋāϚāĻŋāĻšā§āύ⧇āϰ āϏāĻ‚āĻ–ā§āϝāĻž-
    1. āĻĻ⧁āχ
    2. āϤāĻŋāύ
    3. āĻĒāĻžāρāϚ
    4. āĻ›āϝāĻŧ

    Ans. āϤāĻŋāύ

  5. The wind suddenly dropped. āĻŦāĻžāĻ•ā§āϝāϟāĻŋāϰ āϝāĻĨāĻžāϝāĻĨ āĻŦāĻ™ā§āĻ—āĻžāύ⧁āĻŦāĻžāĻĻ?
    1. āĻŦāĻžāϤāĻžāϏ āĻĒāĻĄāĻŧ⧇ āϗ⧇āϞ
    2. āĻŦāĻžāϤāĻžāϏāϟāĻž āĻ•āĻŽā§‡ āϗ⧇āϞ
    3. āĻšāĻ āĻžā§Ž āĻŦāĻžāϤāĻžāϏ āĻ•āĻŽā§‡ āϗ⧇āϞ
    4. āĻšāĻ āĻžā§Ž āĻ¸ā§āϤāĻŦā§āϧāϤāĻž āύ⧇āĻŽā§‡ āĻāϞ

    Ans. āĻšāĻ āĻžā§Ž āĻŦāĻžāϤāĻžāϏ āĻ•āĻŽā§‡ āϗ⧇āϞ

  6. ‘āĻĒā§āϰāĻžāĻšā§€āĻ¨â€™ āĻāϰ āĻŦāĻŋāĻĒāϰ⧀āϤ āĻļāĻŦā§āĻĻ-
    1. āϤāϰ⧁āĻŖ
    2. āύāĻŦā§€āύ
    3. āĻ…āĻ°ā§āĻŦāĻžāĻšā§€āύ
    4. āύ⧂āϤāύ

    Ans. āĻ…āĻ°ā§āĻŦāĻžāĻšā§€āύ

  7. ‘āĻŽā§‡āύāĻŋāĻŽā§āĻ–ā§‹â€™ āĻŦāϞāϤ⧇ āĻŦā§‹āĻāĻžāϝāĻŧ-
    1. āĻ­ā§€āϤ⧁
    2. āϞāĻžāϜ⧁āĻ•
    3. āĻŽā§āĻ–āϰāĻž
    4. āĻŦāĻŋāĻĄāĻŧāĻžāϞāĻŽā§āĻ–ā§‹

    Ans. āϞāĻžāϜ⧁āĻ•

  8. ‘āĻļāĻŋāĻļāĻŋāϰ āϝāĻ–āύ āϕ⧋āϞ⧇ āϤāĻ–āύ āϤāĻžāĻšāĻžāϰ āĻŽāĻžāϰ āĻŽā§ƒāĻ¤ā§āϝ⧁ āĻšāϝāĻŧāĨ¤â€™ āĻŦāĻžāĻ•ā§āϝāϟāĻŋ-
    1. āϏāϰāϞ
    2. āϝ⧌āĻ—āĻŋāĻ•
    3. āϜāϟāĻŋāϞ
    4. āĻ–āĻŖā§āĻĄ

    Ans. āϜāϟāĻŋāϞ

  9. āϕ⧋āύāϟāĻŋ āĻŦāĻŋāĻļ⧇āώāĻŖ?
    1. āĻĻāĻŋāύ
    2. āĻĻāĻŋāύāĻžāĻ¨ā§āϤ
    3. āĻĻāĻŋāύ-āϰāĻžāϤ
    4. āĻĻā§€āύ

    Ans. āĻĻā§€āύ

  10. ‘āĻšāĻžāϏāĻŋ āĻĻāĻŋāϝāĻŧ⧇ āϘāϰāϟāĻžāϕ⧇ āĻ­āϰāĻŋāϝāĻŧ⧇ āϰāĻžāĻ–āϤ⧋ āϏ⧇āĨ¤ āĻŦāĻžāĻ•ā§āϝāϟāĻŋāϤ⧇ ‘āĻĻāĻŋāϝāĻŧā§‡â€™ āĻšāϞ⧋-
    1. āĻ…āĻŦā§āϝāϝāĻŧ
    2. āĻĒā§āϰāĻ¤ā§āϝāϝāĻŧ
    3. āĻ…āύ⧁āϏāĻ°ā§āĻ—
    4. āωāĻĒāϏāĻ°ā§āĻ—

    Ans. āĻ…āύ⧁āϏāĻ°ā§āĻ—

  11. āύāĻŋāĻšā§‡āϰ āϕ⧋āύāϟāĻŋ āĻŦāĻŋāϰāĻžāĻŽāϚāĻŋāĻšā§āύ āύāϝāĻŧ?
    1. āĻ•āĻŽāĻž (,)
    2. āϏ⧇āĻŽāĻŋ-āϕ⧋āϞāύ [;]
    3. āĻĄā§āϝāĻžāϏ [-]
    4. āĻšāĻžāχāĻĢ⧇āύ [-]

    Ans.

  12. āϕ⧋āύāϟāĻŋ āĻ§ā§āĻŦāύāĻŋāĻŦāĻŋāĻĒāĻ°ā§āϝāϝāĻŧ⧇āϰ āωāĻĻāĻžāĻšāϰāĻŖ?
    1. āĻŦāĻĄāĻŧāĻĻāĻžāĻĻāĻž > āĻŦāĻĄāĻŧāĻĻāĻž
    2. āĻ•āĻŋāϛ⧁ > āĻ•āĻŋāϛ⧁
    3. āĻĒāĻŋāĻļāĻžāϚ > āĻĒāĻŋāϚāĻžāĻļ
    4. āĻŽā§āĻ•ā§āϤāĻž > āĻŽā§āϕ⧁āϤāĻž

    Ans. āĻĒāĻŋāĻļāĻžāϚ > āĻĒāĻŋāϚāĻžāĻļ

  13. āϕ⧋āύāϟāĻŋ āĻ…āĻĒāĻĒā§āĻ°ā§Ÿā§‹āϗ⧇āϰ āĻĻ⧃āĻˇā§āϟāĻžāĻ¨ā§āϤ?
    1. āĻāĻ•
    2. āĻāĻ•āĻ¤ā§āϰ
    3. āĻāĻ•āĻ¤ā§āϰāĻŋāϤ
    4. āĻāĻ•āĻžāϕ⧀

    Ans. āĻāĻ•āĻ¤ā§āϰāĻŋāϤ

  14. āϕ⧋āύāϟāĻŋ āĻāĻ•āĻžāĻ•ā§āώāϰ āĻļāĻŦā§āĻĻ?
    1. āĻŽāĻžāĻŽāĻž
    2. āĻ­āĻžāχ
    3. āĻĻāĻŋāĻĻāĻŋ
    4. āϚāĻžāϚāĻž

    Ans. āĻ­āĻžāχ

  15. ‘āĻ•ā§ƒāĻ•āϞāĻžāϏ’ āĻāϰ āĻĒā§āϰāϤāĻŋāĻļāĻŦā§āĻĻ-
    1. āĻ•ā§ƒāĻļāĻ•āĻžāϝāĻŧ
    2. āĻ•āĻžāρāĻ•āĻĄāĻŧāĻž
    3. āĻ•ā§ƒāĻˇā§āĻŖāĻ•āĻžāϝāĻŧ
    4. āĻ—āĻŋāϰāĻ—āĻŋāϟāĻŋ

    Ans. āĻ—āĻŋāϰāĻ—āĻŋāϟāĻŋ

  16. ‘āĻ­ā§‚āĻ™ā§āĻ—’ āĻāϰ āĻļāĻŦā§āĻĻāĻžāĻ°ā§āĻĨ-
    1. āĻ­āĻ™ā§āϗ⧁āϰ
    2. āĻ­ā§āϰāĻŽāϰ
    3. āϭ⧁āϜāĻ™ā§āĻ—
    4. āĻ—āĻžāĻĄāĻŧ

    Ans. āĻ­ā§āϰāĻŽāϰ

  17. āĻĒ⧇āĻŸā§‹āϝāĻŧāĻž āĻļāĻŦā§āĻĻ⧇āϰ āĻ…āĻ°ā§āĻĨ-
    1. āĻ…āύ⧁āĻ—āϤ
    2. āϞāĻžāĻ āĻŋāϝāĻŧāĻžāϞ
    3. āϏāĻ¨ā§āĻ¤ā§āϰāĻžāϏ⧀
    4. āĻĻāĻžāϞāĻžāϞ

    Ans. āĻ…āύ⧁āĻ—āϤ

  18. āϕ⧋āύāϟāĻŋ āϝ⧁āĻ—ā§āĻŽ āĻ¸ā§āĻŦāϰāĻ§ā§āĻŦāύāĻŋ?
    1. āϊ
    2. āĻ‹
    3. āĻ
    4. āϐ

    Ans. āϐ

  19. āϕ⧋āύ āĻļāĻŦā§āĻĻāϟāĻŋāϰ āĻĒ⧁āϰ⧁āώāĻŦāĻžāϚāĻ• āϰ⧂āĻĒ āύ⧇āχ?
    1. āϏāϤ⧀
    2. āĻ āĻžāϕ⧁āϰāύ
    3. āĻāĻŋ
    4. āώ⧋āĻĄāĻŧāĻļā§€

    Ans. āώ⧋āĻĄāĻŧāĻļā§€

  20. āĻŦā§āϝāĻžā§āϜāύāĻŦāĻ°ā§āϪ⧇āϰ āϏāĻ‚āĻ•ā§āώāĻŋāĻĒā§āϤ āϰ⧂āĻĒāϕ⧇ āϕ⧀ āĻŦāϞ⧇?
    1. āĻĢāϞāĻž
    2. āĻ•āĻžāϰ
    3. āĻ…āĻ•ā§āώāϰ
    4. āĻ§ā§āĻŦāύāĻŋāĻŽā§‚āϞ

    Ans. āĻĢāϞāĻž

  21. ‘āχāĻ•āĻž’ āĻĒā§āϰāĻ¤ā§āϝāϝāĻŧ āϕ⧋āύ āĻļāĻŦā§āĻĻ⧇ āĻ•ā§āώ⧁āĻĻā§āϰāĻžāĻ°ā§āĻĨ⧇ āĻŦā§āϝāĻŦāĻšā§ƒāϤ āĻšāϝāĻŧ⧇āϛ⧇?
    1. āϏ⧇āĻŦāĻŋāĻ•āĻž
    2. āĻŽāĻžāϞāĻŋāĻ•āĻž
    3. āĻŦāĻžāϞāĻŋāĻ•āĻž
    4. āϚāĻžāϞāĻŋāĻ•āĻž

    Ans. āĻŽāĻžāϞāĻŋāĻ•āĻž

  22. ‘āϏāĻ•āϞ āĻ›āĻžāĻ¤ā§āϰāϰāĻžāχ āϝāĻĨāĻžāϏāĻŽāϝāĻŧ⧇ āωāĻĒāĻ¸ā§āĻĨāĻŋāϤ āĻšāϝāĻŧ⧇āϛ⧇āĨ¤’ āĻŦāĻžāĻ•ā§āϝāϟāĻŋāϤ⧇ āϕ⧀ āϧāϰāύ⧇āϰ āϭ⧁āϞ āφāϛ⧇?
    1. āĻŦāĻžāύāĻžāύ
    2. āĻĒāĻĻ
    3. āĻŦāϚāύ
    4. āĻŦāĻŋāĻ­āĻ•ā§āϤāĻŋ

    Ans. āĻŦāϚāύ

  23. ‘āĻā§‹āϞ⧇āϰ āϞāĻžāω āĻ…āĻŽā§āĻŦāϞ⧇āϰ āĻ•āĻĻā§â€™ āĻŦāĻžāĻ—āϧāĻžāϰāĻžāϰ āĻ…āĻ°ā§āĻĨ āϕ⧀?
    1. āĻœā§€āĻ°ā§āĻŖāĻļā§€āĻ°ā§āĻŖ āϞ⧋āĻ•
    2. āĻŽāĻŋāĻļāĻŋāϝāĻŧ⧇ āĻĢ⧇āϞāĻž
    3. āϏāĻŦ āĻĒāĻ•ā§āώ⧇āϰ āĻŽāύ āϝ⧁āĻ—āĻŋāϝāĻŧ⧇ āϚāϞāĻž
    4. āĻĒ⧁āρāĻĨāĻŋāĻ—āϤ āĻŦāĻŋāĻĻā§āϝāĻž

    Ans. āϏāĻŦ āĻĒāĻ•ā§āώ⧇āϰ āĻŽāύ āϝ⧁āĻ—āĻŋāϝāĻŧ⧇ āϚāϞāĻž

  24. ‘āĻšā§ˆāĻŽāĻ¨ā§āĻ¤ā§€â€™ āĻ—āĻ˛ā§āĻĒ⧇ āωāĻ˛ā§āϞ⧇āĻ–āĻ•ā§ƒāϤ āĻāĻĄāĻŽāĻ¨ā§āĻĄ āĻŦāĻžāĻ°ā§āϕ⧇āϰ āϞ⧇āĻ–āĻž ‘āĻĢā§āϰ⧇āĻžā§āϚ āϰ⧇āĻ­ā§‹āĻ˛ā§āϝ⧁āĻļāύ’ āĻ—ā§āϰāĻ¨ā§āĻĨāϟāĻŋ āĻ•āϤ āĻ–ā§āϰāĻŋāĻ¸ā§āϟāĻžāĻŦā§āĻĻ⧇ āĻĒā§āϰāĻ•āĻžāĻļāĻŋāϤ āĻšāϝāĻŧ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. ⧧⧭⧝ā§Ļ
    2. ⧧⧭⧝⧍
    3. ⧧⧭⧝ā§Ē
    4. ā§§ā§Žā§Ļā§§

    Ans. ⧧⧭⧝ā§Ļ

  25. ‘āϏ⧋āύāĻžāϰ āϤāϰ⧀’ āĻ•āĻŦāĻŋāϤāĻžāϝāĻŧ ‘āĻŦāĻžāρāĻ•āĻž āϜāϞ” āĻŦāϞāϤ⧇ āĻĒā§āϰāϤ⧀āϕ⧀ āĻ…āĻ°ā§āĻĨ⧇ āϕ⧀āĨ¤ āĻŦā§‹āĻāĻžāύ⧋ āĻšāϝāĻŧ⧇āϛ⧇?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ•āĻŦāĻŋāϰ āĻŦā§āϝāĻ•ā§āϤāĻŋāϏāĻ¤ā§āϤāĻž
    2. āĻŽāĻšāĻžāĻ•āĻžāϞ
    3. āĻ•āĻžāϞāĻ¸ā§āϰ⧋āϤ
    4. āĻ•āĻŦāĻŋāϰ āϏ⧃āĻˇā§āϟāĻŋāĻ•āĻ°ā§āĻŽ

    Ans. āĻ•āĻžāϞāĻ¸ā§āϰ⧋āϤ

  26. āϕ⧋āύ āĻĻ⧁āϟāĻŋ āϰāϚāύāĻžāϝāĻŧ ‘āϏ⧀āϤāĻž” āύāĻžāĻŽā§‡āϰ āωāĻ˛ā§āϞ⧇āĻ– āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻšā§ˆāĻŽāĻ¨ā§āϤ⧀ āĻ“ āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€
    2. āĻšā§ˆāĻŽāĻ¨ā§āϤ⧀ āĻ“ āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž
    3. āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€ āĻ“ āĻŦāĻŋāϞāĻžāϏ⧀
    4. āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€ āĻ“ āϏāĻžāĻšāĻŋāĻ¤ā§āϝ⧇ āϖ⧇āϞāĻž

    Ans. āĻšā§ˆāĻŽāĻ¨ā§āϤ⧀ āĻ“ āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€

  27. ‘āφāĻĨāĻžāĻ˛â€™ āϕ⧀?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āφāĻšā§āĻ›āĻžāĻĻāύ
    2. āĻĒāĻžāĻ¤ā§āϰ
    3. āĻ—ā§‹āϝāĻŧāĻžāϞ
    4. āφāĻ¸ā§āϤāĻžāĻŦāϞ

    Ans. āĻ—ā§‹āϝāĻŧāĻžāϞ

  28. āĻ—āĻ˛ā§āĻĒ⧇āϰ āϰāĻžāϜāĻž āĻ›āĻŋāϞ āϕ⧇?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āϰāĻžāĻšāĻžāϤ
    2. āϰ⧇āϪ⧁
    3. āύāĻžāϜāĻŋāĻŽ
    4. āϤāĻĒ⧁

    Ans. āϤāĻĒ⧁

  29. āφāĻŽāύ āϧāĻžāύ⧇āϰ āωāĻ˛ā§āϞ⧇āĻ– āφāϛ⧇ āϕ⧋āύ āĻ•āĻŦāĻŋāϤāĻžāϝāĻŧ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻ•āĻŦāϰ
    2. āϏ⧋āύāĻžāϰ āϤāϰ⧀
    3. āφāĻŽāĻžāϰ āĻĒā§‚āĻ°ā§āĻŦ āĻŦāĻžāĻ‚āϞāĻž
    4. āĻŦāĻžāĻ‚āϞāĻžāĻĻ⧇āĻļ

    Ans. āĻŦāĻžāĻ‚āϞāĻžāĻĻ⧇āĻļ

  30. ‘āϕ⧇āύ āϏāĻ–āĻŋ āϕ⧋āϪ⧇ āĻ•āĻžāρāĻĻāĻŋāĻ› āĻŦāϏāĻŋāϝāĻŧāĻž?’ āĻĒāĻ™āĻ•ā§āϤāĻŋāϟāĻŋ āϕ⧋āύ āϰāϚāύāĻžāϝāĻŧ āĻĒāĻžāĻ“āϝāĻŧāĻž āϝāĻžāϝāĻŧ?(āĻĒ⧁āϰāĻžāϤāύ āϏāĻŋāϞ⧇āĻŦāĻžāϏ)
    1. āĻŦāĻŋāϞāĻžāϏ⧀
    2. āϤāĻžāĻšāĻžāϰ⧇āχ āĻĒāĻĄāĻŧ⧇ āĻŽāύ⧇
    3. āĻšā§ˆāĻŽāĻ¨ā§āϤ⧀
    4. āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€

    Ans. āĻ…āĻ°ā§āϧāĻžāĻ™ā§āĻ—ā§€

āχāĻ‚āϰ⧇āϜāĻŋ

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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