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1. A
   1-Bromo-1,1-dimethylbut-2-ene
2. B
   4-Bromo-4-methylpent-2-ene
3. C
   2-Bromo-2-methylpent-3-ene
4. D
   4-Bromo-4,4-dimethylbut-2-ene

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1. A
   $4 \times 10^{-4}$
2. B
   $4 \times 10^{-6}$
3. C
   $5 \times 10^{-6}$
4. D
   $5 \times 10^{-7}$

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1. A
   NaBr
2. B
   NaCl
3. C
   NaNO$_3$
4. D
   Na$_2$SO$_4$

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1. A
   Polythene
2. B
   Nylon 6, 6
3. C
   Polyacrylonitrile
4. D
   Teflon

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1. A
   $\text{Zn}_{(s)} \to \text{Zn}^{2+}_{(aq)} + 2e^-$
2. B
   $\text{Zn}^{2+}_{(aq)} + 2e^- \to \text{Zn}_{(s)}$
3. C
   $\text{H}_{2(g)} \to 2\text{H}^+_{(g)} + 2e^-$
4. D
   $2\text{H}^+_{(aq)} + 2e^- \to \text{H}_{2(g)}$

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1. A
   Nylon 6, 6
2. B
   Urea formaldehyde resin
3. C
   Polystyrene
4. D
   Neoprene

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1. A
   $\frac{d[\text{N}_2]}{dt} = -3\frac{d[\text{H}_2]}{dt} = 2\frac{d[\text{NH}_3]}{dt}$
2. B
   $\frac{d[\text{N}_2]}{dt} = -\frac{1}{3}\frac{d[\text{H}_2]}{dt} = \frac{1}{2}\frac{d[\text{NH}_3]}{dt}$
3. C
   $-\frac{d[\text{N}_2]}{dt} = -\frac{1}{3}\frac{d[\text{H}_2]}{dt} = \frac{1}{2}\frac{d[\text{NH}_3]}{dt}$
4. D
   $\frac{d[\text{N}_2]}{dt} = \frac{1}{3}\frac{d[\text{H}_2]}{dt} = -\frac{1}{2}\frac{d[\text{NH}_3]}{dt}$

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1. A
   Electrolysis of pure water
2. B
   Action of NaOH on Zinc
3. C
   From hydrocarbons
4. D
   Electrolysis of warm BaSO$_4$ solution

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1. A
   Cyclohexanol
2. B
   Cyclohexanone
3. C
   Hexanoic acid
4. D
   Adipic acid

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1. A
   $43.5\text{ kJ mol}^{-1}$
2. B
   $35.3\text{ kJ mol}^{-1}$
3. C
   $30.6\text{ kJ mol}^{-1}$
4. D
   $40.7\text{ kJ mol}^{-1}$

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1. A
   3.0
2. B
   3.5
3. C
   4.0
4. D
   4.5

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1. A
   1-Methoxy-3,3-dimethylcyclobutane
2. B
   3-Methoxy-1,1-dimethylcyclobutane
3. C
   3,3-dimethylcyclobutoxymethane
4. D
   1-methoxy-3-isopropyl butane

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1. A
   4.379
2. B
   2.379
3. C
   4.981
4. D
   2.981

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1. A
   $1700\text{ J K}^{-1}$
2. B
   $1750\text{ J K}^{-1}$
3. C
   $1800\text{ J K}^{-1}$
4. D
   $1650\text{ J K}^{-1}$

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1. A
   Structure A (single horizontal line with branch)
2. B
   Structure B (branched structure)
3. C
   Structure C (cross-shaped)
4. D
   Structure D (zigzag chain)

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1. A
   4
2. B
   2
3. C
   0.5
4. D
   1

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1. A
   Wedge formula
2. B
   Fisher projection formula
3. C
   Newman projection formula
4. D
   Sawhorse formula

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1. A
   $\text{H}_2\text{S}_2\text{O}_3$
2. B
   $\text{H}_2\text{S}_2\text{O}_5$
3. C
   $\text{H}_2\text{S}_2\text{O}_7$
4. D
   $\text{H}_2\text{S}_2\text{O}_8$

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1. A
   $\text{NaCl} + \text{KNO}_3 \to \text{NaNO}_3 + \text{KCl}$
2. B
   $\text{Mg(OH)}_2 + 2\text{NH}_4\text{Cl} \to \text{MgCl}_2 + 2\text{NH}_4\text{OH}$
3. C
   $\text{CaC}_2\text{O}_4 + 2\text{HCl} \to \text{CaCl}_2 + \text{H}_2\text{C}_2\text{O}_4$
4. D
   $\text{Zn} + 2\text{AgCN} \to 2\text{Ag} + \text{Zn(CN)}_2$

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

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1. A
   Zero
2. B
   One
3. C
   Two
4. D
   Three

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1. A
   1-Bromopropene
2. B
   2-Bromopropene
3. C
   3-Bromopropene
4. D
   4-Bromobut-1-ene

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1. A
   1-Fluoro-2-methylpropane
2. B
   2-Fluoro-2-methylpropane
3. C
   1-Flurobutane
4. D
   2-Flurobutane

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1. A
   $2.0\text{ K kg mol}^{-1}$
2. B
   $3.0\text{ K kg mol}^{-1}$
3. C
   $2.5\text{ K kg mol}^{-1}$
4. D
   $3.5\text{ K kg mol}^{-1}$

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1. A
   Sucrose and Lactose
2. B
   Lactose and Maltose
3. C
   Sucrose and Maltose
4. D
   Raffinose and Maltose

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