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1. A
   64 P
2. B
   256 P
3. C
   4 P
4. D
   16 P

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1. A
   $\frac{3K}{4}$
2. B
   $\frac{K}{4}$
3. C
   $\frac{K}{2}$
4. D
   K

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1. A
   is zero.
2. B
   remains constant.
3. C
   increases.
4. D
   decreases.

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1. A
   $\frac{B}{H} = \mu_0(1-\chi)$
2. B
   $\frac{B}{H} = \mu_0(1+\chi)^2$
3. C
   $\frac{B}{H} = \mu_0(1+\chi)$
4. D
   $\frac{B}{H} = \mu_0(1-\chi)^2$

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1. A
   OR, A+B
2. B
   AND, A·B
3. C
   NOR, A+B
4. D
   NAND, A+B

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1. A
   6 min
2. B
   4 min
3. C
   3 min
4. D
   2 min

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1. A
   $3\mu$ F
2. B
   $6\mu$ F
3. C
   $8\mu$ F
4. D
   $12\mu$ F

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1. A
   $\gamma$
2. B
   $\gamma - 1$
3. C
   $\frac{\gamma}{\gamma-1}$
4. D
   $\frac{\gamma-1}{\gamma}$

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1. A
   $\frac{B}{3}$
2. B
   $\frac{B}{4}$
3. C
   $\frac{3B}{4}$
4. D
   $\frac{2B}{3}$

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1. A
   have high resolution.
2. B
   have low dispersion.
3. C
   increase the span of observation.
4. D
   have large wavelength.

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1. A
   $\frac{n}{n-x} = \sqrt{\frac{d}{d-1}}$
2. B
   $\frac{n}{n-x} = \sqrt{\frac{d}{d-1}}$
3. C
   $\frac{n-x}{n} = \sqrt{\frac{d-1}{d}}$
4. D
   $\frac{n-x}{n} = \sqrt{\frac{d}{d-1}}$

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1. A
   $\frac{1}{4}$
2. B
   $\frac{1}{2}$
3. C
   2
4. D
   4

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1. A
   $\frac{4ML^2}{3}$
2. B
   $\frac{ML^2}{12}$
3. C
   $\frac{ML^2}{6}$
4. D
   $\frac{2ML^2}{3}$

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1. A
   0.20 H
2. B
   2.0 H
3. C
   20 H
4. D
   200 H

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1. A
   $(2)^{1/3} V$
2. B
   $(2)^{3/2} V$
3. C
   $(2)^{2/3} V$
4. D
   $(2)^{1/4} V$

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1. A
   $\cos^{-1}\left(-\frac{1}{2}\right)$
2. B
   $\cos^{-1}\left(-\frac{1}{4}\right)$
3. C
   $\cos^{-1}\left(-\frac{1}{6}\right)$
4. D
   $\cos^{-1}\left(-\frac{1}{8}\right)$

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1. A
   198 g mol$^{-1}$
2. B
   210 g mol$^{-1}$
3. C
   118 g mol$^{-1}$
4. D
   225 g mol$^{-1}$

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1. A
   Methanol and Ethanol
2. B
   Methanal and Ethanol
3. C
   Methanal and Ethanal
4. D
   Methanol and Ethanal

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1. A
   sp$^3$d$^3$ and tetrahedral
2. B
   sp$^3$d Trigonal bipyramidal
3. C
   sp$^3$d$^2$ and trigonal bipyramidal
4. D
   sp$^3$d$^2$ and octahedral

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1. A
   Hydrogen cyanide and sodium cyanide
2. B
   Copper hydroxide and copper chloride
3. C
   Carbonic acid and salt of carbonic acid
4. D
   Ammonium hydroxide and ammonium chloride

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1. A
   C-1 of α-glucose and C-2 of β-fructose
2. B
   C-1 of β-glucose and C-2 of β-fructose
3. C
   C-2 of α-glucose and C-2 of β-fructose
4. D
   C-3 of α-glucose and C-1 of β-fructose

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1. A
   0.165 cm$^{-1}$
2. B
   1.601 cm$^{-1}$
3. C
   218.5 cm$^{-1}$
4. D
   0.218 cm$^{-1}$

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1. A
   N$_2$
2. B
   Cl$_2$
3. C
   H$_2$S
4. D
   NH$_3$

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1. A
   0.12 mol kg$^{-1}$
2. B
   0.16 mol kg$^{-1}$
3. C
   0.21 mol kg$^{-1}$
4. D
   0.28 mol kg$^{-1}$

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1. A
   1:1
2. B
   2:1
3. C
   1:3
4. D
   3:1

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