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1. A
   $\text{CN}^-$
2. B
   $\text{H}_2\text{NCH}_2\text{CH}_2\text{NH}_2$
3. C
   $\text{OH}^-$
4. D
   $\text{Cl}^-$

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1. A
   $4.6\times10^{-3}\ \text{M}$
2. B
   $4.5\times10^{-2}\ \text{M}$
3. C
   $4.0\times10^{-4}\ \text{M}$
4. D
   $3.6\times10^{-2}\ \text{M}$

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1. A
   0.035 and 0.065
2. B
   0.055 and 0.045
3. C
   0.45 and 0.55
4. D
   0.55 and 0.45

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1. A
   $15354.8\ \text{cm}^{-1}$
2. B
   $82257.8\ \text{cm}^{-1}$
3. C
   $30515.4\ \text{cm}^{-1}$
4. D
   $41128.5\ \text{cm}^{-1}$

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1. A
   1.30
2. B
   2.33
3. C
   3.00
4. D
   4.11

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1. A
   NaBr
2. B
   NaNO$_3$
3. C
   KNO$_3$
4. D
   $\text{Na}_2\text{SO}_4$

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1. A
   Isoprene
2. B
   1,3-Butadiene
3. C
   Phenol and formaldehyde
4. D
   Melamine

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1. A
   Rate increases by factor 2
2. B
   Rate increases by factor 4
3. C
   Rate remains same
4. D
   Rate decreases by factor 2

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1. A
   Chlorobenzene
2. B
   Benzal chloride
3. C
   Benzaldehyde
4. D
   Benzoic acid

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1. A
   $\text{C}_8\text{H}_{10}\text{N}_2$
2. B
   $\text{C}_7\text{H}_9\text{N}$
3. C
   $\text{C}_{10}\text{H}_{14}\text{N}_2$
4. D
   $\text{C}_{10}\text{H}_{14}\text{N}$

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1. A
   $121.3\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1}$
2. B
   $115.1\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1}$
3. C
   $126.5\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1}$
4. D
   $131.2\ \Omega^{-1}\ \text{cm}^2\ \text{mol}^{-1}$

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1. A
   0.637 V
2. B
   $-0.530\ \text{V}$
3. C
   $-0.889\ \text{V}$
4. D
   0.789 V

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1. A
   2-Ethyl-3-methylcyclopentanol
2. B
   2-Methyl-3-ethylcyclopentanol
3. C
   1-Methyl-3-ethylcyclopentanol
4. D
   2-Ethyl-5-methylcyclopentanol

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1. A
   Rb
2. B
   Sr
3. C
   Fr
4. D
   Cs

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1. A
   The existence of substance in more than one crystalline form.
2. B
   Polymorphism occurring in element is called allotropy.
3. C
   Polymorphic forms of a substance are formed under different conditions.
4. D
   The crystal shape of polymorphic substances are identical to each other.

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1. A
   Prop-2-en-1-ol
2. B
   But-2-en-2-ol
3. C
   But-3-en-2-ol
4. D
   2-methylbut-3-en-2-ol

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

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1. A
   Zero kJ
2. B
   20 kJ
3. C
   100 kJ
4. D
   150 kJ

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

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1. A
   $\text{C}_6\text{H}_5\text{-CH}_2\text{-X}$
2. B
   $\text{C}_6\text{H}_5\text{-X}$
3. C
   $\text{C}_6\text{H}_5\text{-CH=CH-X}$
4. D
   $\text{C}_6\text{H}_5\text{-CH}_2\text{-CH}_2\text{-X}$

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1. A
   Mg
2. B
   Ni
3. C
   O
4. D
   Cu

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1. A
   $2\lambda_{A^{3+}}^0+3\lambda_{B^{2-}}^0$
2. B
   $3\lambda_{A^{3+}}^0+2\lambda_{B^{2-}}^0$
3. C
   $2\lambda_{A^+}^0+\lambda_{B^-}^0$
4. D
   $\lambda_{A^{3+}}^0+3\lambda_{B^{2-}}^0$

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1. A
   Ethanol
2. B
   Propan-1-ol
3. C
   Propan-2-ol
4. D
   Butan-1-ol

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1. A
   Chloromethane
2. B
   Fluoromethane
3. C
   Iodomethane
4. D
   Bromomethane

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1. A
   $\text{RCOCl}\xrightarrow{\text{H}_2/\text{Pd-BaSO}_4}\text{R-CHO+HCl}$
2. B
   $\text{RCN}\xrightarrow{\text{SnCl}_2,\text{HCl/H}_3\text{O}^+}\text{RCHO+NH}_4\text{Cl}$
3. C
   $\text{RCHO}\xrightarrow{\text{Zn-Hg/conc.HCl}}\text{R-CH}_2+\text{H}_2\text{O}$
4. D
   $\text{RCOR'}\xrightarrow{(i)\text{H}_2\text{N-NH}_2,(ii)\text{KOH,HOCH}_2\text{CH}_2\text{OH}}\text{R-CH}_2\text{-R'}+\text{N}_2$

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