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1. A
   NH$_3$
2. B
   HNO$_3$
3. C
   KCN (alc)
4. D
   AgCN (alc)

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1. A
   $-7340$ J
2. B
   $-5400$ J
3. C
   $-8660$ J
4. D
   $-1212$ J

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1. A
   To obtain pure hydrogen gas
2. B
   To obtain hydrogen gas at exactly 1 bar pressure
3. C
   To maintain exactly 1 atm pressure
4. D
   To bring the reaction in reverse direction

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1. A
   Sulphanilic acid
2. B
   Sulphonic acid
3. C
   Benzene sulphonic acid
4. D
   Amino benzoic acid

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1. A
   Only solids
2. B
   only gases
3. C
   only liquids
4. D
   both solids and liquids

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1. A
   $1.26\times10^{3}\,\Omega^{-1}\text{cm}^2\text{mol}^{-1}$
2. B
   $2.52\times10^{3}\,\Omega^{-1}\text{cm}^2\text{mol}^{-1}$
3. C
   $4.82\times10^{3}\,\Omega^{-1}\text{cm}^2\text{mol}^{-1}$
4. D
   $6.30\times10^{3}\,\Omega^{-1}\text{cm}^2\text{mol}^{-1}$

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1. A
   Hypochlorous acid
2. B
   Chlorous acid
3. C
   Chloric acid
4. D
   Perchloric acid

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1. A
   x=1
2. B
   x=2
3. C
   x=3
4. D
   x=4

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1. A
   HCl
2. B
   H$_3$PO$_2$/H$_2$O
3. C
   H$_2$O/HCl
4. D
   CH$_3$CH$_2$OH

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1. A
   1-methylcyclohexene
2. B
   Cyclohexane
3. C
   Cyclohexene
4. D
   Methylenecyclohexane

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1. A
   1s and 2s
2. B
   1s and 2p
3. C
   2s and 2p
4. D
   3s and 2p

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

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1. A
   $2.66\,\text{dm}^3$
2. B
   $4.8\,\text{dm}^3$
3. C
   $5.0\,\text{dm}^3$
4. D
   $8.0\,\text{dm}^3$

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1. A
   Unipositive ions have inert gas configuration.
2. B
   Compounds of unipositive ions are paramagnetic.
3. C
   These form colourless compounds in +1 state.
4. D
   These have high negative values of standard reduction potential.

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1. A
   Zn
2. B
   Cu
3. C
   Er
4. D
   La

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1. A
   $-\text{NH}-$
2. B
   $-\text{CO}-\text{NH}-$
3. C
   Structure C
4. D
   Structure D

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1. A
   Histidine
2. B
   Glutamic acid
3. C
   Serine
4. D
   Glycine

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1. A
   Catechol : Benzene-1,2-diol
2. B
   Resorcinol : Benzene-1,3-diol
3. C
   O-Cresol : Benzene-1,2,3-triol
4. D
   Quinol : Benzene-1,4-diol

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1. A
   112 g/mol
2. B
   54 g/mol
3. C
   27 g/mol
4. D
   78 g/mol

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1. A
   Nitrosobenzene
2. B
   Chlorobenzene
3. C
   Benzene diazonium chloride
4. D
   Phenol

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1. A
   Benzoic acid
2. B
   Benzaldehyde
3. C
   Phenol
4. D
   Glyoxal

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1. A
   $10^{-11}$ M
2. B
   $10^{-8}$ M
3. C
   $10^{-6}$ M
4. D
   $10^{-3}$ M

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1. A
   Eu
2. B
   Cm
3. C
   Am
4. D
   Np

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1. A
   30
2. B
   32
3. C
   35
4. D
   36

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1. A
   Particles of dispersed phase have no affinity for dispersion medium.
2. B
   Particles easily detected under ultramicroscope.
3. C
   Addition of large amount of electrolyte causes precipitation.
4. D
   These are irreversible colloids.

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