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1. A
   0.01 mol dm$^{-3}$ s$^{-1}$
2. B
   0.02 mol dm$^{-3}$ s$^{-1}$
3. C
   0.03 mol dm$^{-3}$ s$^{-1}$
4. D
   0.04 mol dm$^{-3}$ s$^{-1}$

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1. A
   Pentaammineaquacobalt(III) chloride
2. B
   Triamminetrithiocyanatorhodium(III)
3. C
   Bis(ethylenediamine)dithiocyanatoplatinum(IV)
4. D
   Triamminetrinitrocobalt(III)

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1. A
   4n
2. B
   3n
3. C
   5n
4. D
   6n

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1. A
   Dimethyl cadmium
2. B
   Propanone
3. C
   Butanone
4. D
   Propanal

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1. A
   by increasing temperature
2. B
   by increasing [NO]
3. C
   by increasing Cl$_2$
4. D
   by increasing both [NO] and Cl$_2$

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1. A
   (a)
2. B
   (b)
3. C
   (c)
4. D
   (d)

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1. A
   $-0.436 \times 10^{-18}$ J
2. B
   $-0.545 \times 10^{-18}$ J
3. C
   $-0.242 \times 10^{-18}$ J
4. D
   $-0.136 \times 10^{-18}$ J

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1. A
   $\beta$-1,6 and $\alpha$-1,6
2. B
   $\alpha$-1,6 and $\beta$-1,4
3. C
   $\beta$-1,4 and $\alpha$-1,6
4. D
   $\alpha$-1,4 and $\alpha$-1,6

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1. A
   Ne
2. B
   O$^{2-}$
3. C
   Na
4. D
   Na$^+$

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1. A
   Methyl carbinol
2. B
   Ethyl carbinol
3. C
   Propyl carbinol
4. D
   Trimethyl carbinol

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1. A
   I
2. B
   Te
3. C
   Ar
4. D
   Ne

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1. A
   0.3 kg
2. B
   3.0 kg
3. C
   30 kg
4. D
   300 kg

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1. A
   600.21 mm Hg
2. B
   604.52 mm Hg
3. C
   608.64 mm Hg
4. D
   612.83 mm Hg

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1. A
   $-400.3$ J
2. B
   $-40.53$ J
3. C
   $-3.947$ J
4. D
   $-253.1$ J

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1. A
   (a)
2. B
   $\text{CH}_2=\text{CH}-\text{CH}_2-\text{OH}$
3. C
   $\text{CH}_2=\text{CH}-\text{C(CH}_3)_2-\text{OH}$
4. D
   $\text{CH}_3-\text{CH}=\text{CH}-\text{CH}_2-\text{CH}_2-\text{OH}$

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1. A
   Cu, K, S
2. B
   Mg, Cu, P
3. C
   Ca, S, O
4. D
   Fe, Cu, S

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1. A
   $\vec{r} = (3\hat{i} + 4\hat{k}) + \lambda(2\hat{j} + \frac{5}{3}\hat{k})$
2. B
   $\vec{r} = (3\hat{i} + 4\hat{k}) + \lambda(2\hat{j} - \frac{5}{3}\hat{k})$
3. C
   $\vec{r} = 2\hat{j} + \frac{5}{3}\hat{k} + \lambda(3\hat{i} + 4\hat{k})$
4. D
   $\vec{r} = 2\hat{j} - \frac{5}{3}\hat{k} + \lambda(3\hat{i} + 4\hat{k})$

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1. A
   576
2. B
   288
3. C
   3456
4. D
   1152

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1. A
   1
2. B
   $-1$
3. C
   0
4. D
   does not exist.

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1. A
   2
2. B
   $-18$
3. C
   $\frac{25}{8}$
4. D
   5

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1. A
   $\frac{6}{5}$
2. B
   $-\frac{6}{5}$
3. C
   $\frac{2\sqrt{6}}{5}$
4. D
   $-\frac{2\sqrt{6}}{5}$

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1. A
   is an empty set.
2. B
   is a singleton set.
3. C
   contains more than two elements.
4. D
   contains two elements.

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

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1. A
   $\dfrac{dy}{dx} = y\left(4 + \dfrac{21}{4(x-4)(x+3)}\right)$
2. B
   $\dfrac{dy}{dx} = 4 + \dfrac{21}{4(x-4)(x+3)}$
3. C
   $\dfrac{dy}{dx} = \dfrac{1}{y}\left(4 + \dfrac{21}{4(x-4)(x+3)}\right)$
4. D
   $\dfrac{dy}{dx} = y\left(4 + \dfrac{21}{4(x+4)(x+3)}\right)$

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1. A
   $\dfrac{3^x}{(\log 3)^2} + c$
2. B
   $\dfrac{3^{3^x}}{\log 3} + c$
3. C
   $\dfrac{3^{3^x}}{(\log 3)^2} + c$
4. D
   $\dfrac{3^x}{\log 3} + c$

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