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1. A
   Irreversible
2. B
   Bulk
3. C
   Exothermic
4. D
   Endothermic

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1. A
   $4.3 \times 10^{-5}$ sec$^{-1}$
2. B
   $7.7 \times 10^{-5}$ sec$^{-1}$
3. C
   $6.9 \times 10^{-5}$ sec$^{-1}$
4. D
   $8.4 \times 10^{-5}$ sec$^{-1}$

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

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1. A
   Er
2. B
   Lu
3. C
   Eu
4. D
   Yb

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

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1. A
   Cytosine
2. B
   Uracil
3. C
   Guanine
4. D
   Thymine

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1. A
   1
2. B
   2
3. C
   3
4. D
   0

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1. A
   $\text{He}$
2. B
   $\text{He}^+$
3. C
   $\text{Li}^{2+}$
4. D
   $\text{Be}^{3+}$

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1. A
   Phenoxide ion
2. B
   Sodium phenoxide
3. C
   Benzene diazonium chloride
4. D
   Benzene

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1. A
   $2y + Z \rightarrow 3x$
2. B
   $2y \rightarrow 3x + Z$
3. C
   $3x + 2y \rightarrow Z$
4. D
   $3x \rightarrow 2y + Z$

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1. A
   Mustard gas
2. B
   Phosgene
3. C
   Tear gas
4. D
   Phosphine

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1. A
   −388 kJ
2. B
   −194 kJ
3. C
   −97 kJ
4. D
   194 kJ

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1. A
   1 m
2. B
   1 M
3. C
   1 N
4. D
   N/10

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1. A
   Cumene hydroperoxide
2. B
   Phenol and $\text{CO}_2$
3. C
   Acetone and Benzoic acid
4. D
   Phenol + Acetone

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1. A
   To prepare shopping bags
2. B
   To prepare microwavable food trays
3. C
   To manufacture disposable cups and plates
4. D
   To prepare bottles for storage of mouth wash

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1. A
   conc. $\text{HNO}_3$
2. B
   Ni
3. C
   $\text{Zn} + \text{H}_2\text{O}$
4. D
   Zn

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1. A
   But-2-ene and But-1-ene
2. B
   n-Butane and 2-Methylpropane
3. C
   Ethoxyethane and methoxypropane
4. D
   Dimethyl ether and ethyl alcohol

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1. A
   $Q = W - \Delta U$
2. B
   $Q = \Delta U - W$
3. C
   $Q = \Delta U + W$
4. D
   $Q = -W$

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1. A
   $1.0 \times 10^{22}$
2. B
   $2.1 \times 10^{22}$
3. C
   $1.4 \times 10^{22}$
4. D
   $1.8 \times 10^{22}$

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1. A
   $\text{BF}_3$
2. B
   $\text{H}_2\text{O}$
3. C
   $\text{C}_2\text{H}_4$
4. D
   $\text{BeCl}_2$

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1. A
   $\text{Na} \rightarrow \text{Na}^+$
2. B
   $\text{VO}^{2+} \rightarrow \text{V}_2\text{O}_3$
3. C
   $\text{Zn}^{2+} \rightarrow \text{Zn}$
4. D
   $\text{CrO}_4^{2-} \rightarrow \text{Cr}_2\text{O}_7^{2-}$

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1. A
   $2.7\ \Omega^{-1}\text{ cm}^2\text{ mol}^{-1}$
2. B
   $3.8\ \Omega^{-1}\text{ cm}^2\text{ mol}^{-1}$
3. C
   $1.9\ \Omega^{-1}\text{ cm}^2\text{ mol}^{-1}$
4. D
   $4.2\ \Omega^{-1}\text{ cm}^2\text{ mol}^{-1}$

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1. A
   $\text{CH}_3\text{-CH=CH}_2$
2. B
   $\text{H}_2\text{C=CH}_2$
3. C
   $\text{CH}_3\text{-CH}_2\text{-CH}_3$
4. D
   $\text{CH}_3\text{-C≡CH}$

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1. A
   42 gram
2. B
   60 gram
3. C
   64 gram
4. D
   50 gram

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1. A
   Benzenol
2. B
   Benzene-1,2-diol
3. C
   Methoxymethane
4. D
   Propan-2-ol

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