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1. A
   Concentration of absorbate is uniform throughout the bulk of the absorbent.
2. B
   It is independent of temperature and pressure.
3. C
   It is not accompanied by evolution or absorption of heat.
4. D
   It depends on surface area.

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1. A
   Flax plant
2. B
   Cotton plant
3. C
   Cane plant
4. D
   Rubber plant

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1. A
   Arg
2. B
   Asp
3. C
   Asn
4. D
   Ala

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

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1. A
   $4n$
2. B
   $6n$
3. C
   $8n$
4. D
   $2n$

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

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1. A
   Tetracyanonickelate(II) ion
2. B
   Potassium trioxalatoaluminate(III)
3. C
   Trioxalatocobaltate(III) ion
4. D
   bis(ethylenediamine)dithiocyanato platinum(IV)

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1. A
   Mn
2. B
   Co
3. C
   Fe
4. D
   Zn

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1. A
   These are softened on heating.
2. B
   Intermolecular forces involved in these are moderately strong intermediate between elastomers and fibres.
3. C
   These possess extensive cross linking by covalent bonds.
4. D
   These can be easily moulded and remoulded.

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1. A
   Astatine is a radioactive element.
2. B
   Astatine belongs to Group 17.
3. C
   Astatine is a halogen.
4. D
   Astatine is stable.

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1. A
   4.7447
2. B
   5.1420
3. C
   5.8496
4. D
   4.0128

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

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1. A
   3-Carboxy-6-methylphenol
2. B
   5-Carboxy-2-methylphenol
3. C
   3-Hydroxy-4-methylbenzoic acid
4. D
   4-methyl-5-hydroxybenzoic acid

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1. A
   $0.44\,\text{mol}^{-2}\,\text{L}^2\,\text{s}^{-1}$
2. B
   $0.88\,\text{mol}^{-2}\,\text{L}^2\,\text{s}^{-1}$
3. C
   $1.136\,\text{mol}^{-2}\,\text{L}^2\,\text{s}^{-1}$
4. D
   $3.52\,\text{mol}^{-2}\,\text{L}^2\,\text{s}^{-1}$

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1. A
   Ethane
2. B
   Propane
3. C
   Butane
4. D
   Pentane

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1. A
   $6.36 \times 10^{-22}\,\text{cm}^3$
2. B
   $5.12 \times 10^{-22}\,\text{cm}^3$
3. C
   $5.84 \times 10^{-22}\,\text{cm}^3$
4. D
   $6.60 \times 10^{-22}\,\text{cm}^3$

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1. A
   $2.4 \times 10^{-2}\,\text{mol}\,\text{dm}^{-3}$
2. B
   $3.0 \times 10^{-2}\,\text{mol}\,\text{dm}^{-3}$
3. C
   $2.7 \times 10^{-2}\,\text{mol}\,\text{dm}^{-3}$
4. D
   $1.8 \times 10^{-2}\,\text{mol}\,\text{dm}^{-3}$

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1. A
   $3.0 \times 10^{14}\,\text{Hz}$
2. B
   $4.0 \times 10^{14}\,\text{Hz}$
3. C
   $7.5 \times 10^{14}\,\text{Hz}$
4. D
   $9.0 \times 10^{14}\,\text{Hz}$

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1. A
   Propene
2. B
   Propanal
3. C
   Propanone
4. D
   Propan-2-ol

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1. A
   Benzaldehyde
2. B
   Butyraldehyde
3. C
   Cinnamaldehyde
4. D
   Oxaldehyde

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1. A
   1-Bromopropane
2. B
   2-Bromopropane
3. C
   1-Bromo-2-methylpropane
4. D
   2-Bromo-2-methylpropane

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1. A
   $\Delta H + \Delta U = PV$
2. B
   $\Delta U = \Delta H + P\Delta V$
3. C
   $\Delta U = \Delta H + \Delta n RT$
4. D
   $\Delta H = \Delta U + \Delta n RT$

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1. A
   3-Carboxy-5-ethylphenol
2. B
   5-Carboxy-3-ethylphenol
3. C
   3-Ethyl-5-hydroxybenzoic acid
4. D
   5-Ethyl-3-hydroxybenzoic acid

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

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1. A
   $R\text{-CONH}_2 \xrightarrow{\text{Br}_2,\,\text{KOH(aq)},\,\Delta} R\text{-NH}_2$
2. B
   $R\text{-NH}_2 \xrightarrow{RX\,\text{(excess)}} R_4\text{N}^+\text{X}^-$
3. C
   $R_4\text{NX} \xrightarrow{\text{Moist Ag}_2\text{O},\,\Delta} \text{Alkene} + R_3\text{N}$
4. D
   $R\text{-CN} \xrightarrow{\text{Na}/C_2H_5\text{OH or LiAlH}_4} R\text{-CH}_2\text{NH}_2$

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