Methods of Purification of Liquid Organic Compounds
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CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317357 The correct match between items of Column-I and Column-II is:
Column I
Column II
A
Coloured impurity
P
Steam distillation
B
Mixture of o- and p-nitrophenol
Q
Fractional distillation
C
Crude Naphtha treatment
R
Charcoal
D
Mixture of glycerol and sugars
S
Distillation under reduced pressure

1 A - R, B - S, C - P, D - Q
2 A - P, B - S, C - R, D - Q
3 A - R, B - P, C - Q, D - S
4 A - R, B - P, C - S, D - Q
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317358 On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

1 Crystallization
2 Sublimation
3 Distillation
4 Chromatography
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317359 Silica gel is used for keeping away the moisture because it

1 Absorbs \(\mathrm{H}_{2} \mathrm{O}\)
2 Adsorbs \(\mathrm{H}_{2} \mathrm{O}\)
3 Reacts with \(\mathrm{H}_{2} \mathrm{O}\)
4 None
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317360 Which is useful for separating benzoic acid from a mixture of benzoic acid and methyl benzoate?

1 \({\rm{Aq}}{\rm{. NaHC}}{{\rm{O}}_{\rm{3}}}\)
2 \({\rm{Dil}}{\rm{.HCI}}\)
3 \({\rm{Dil}}{\rm{. }}{{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{Dil}}{\rm{. HN}}{{\rm{O}}_{\rm{3}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317357 The correct match between items of Column-I and Column-II is:
Column I
Column II
A
Coloured impurity
P
Steam distillation
B
Mixture of o- and p-nitrophenol
Q
Fractional distillation
C
Crude Naphtha treatment
R
Charcoal
D
Mixture of glycerol and sugars
S
Distillation under reduced pressure

1 A - R, B - S, C - P, D - Q
2 A - P, B - S, C - R, D - Q
3 A - R, B - P, C - Q, D - S
4 A - R, B - P, C - S, D - Q
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317358 On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

1 Crystallization
2 Sublimation
3 Distillation
4 Chromatography
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317359 Silica gel is used for keeping away the moisture because it

1 Absorbs \(\mathrm{H}_{2} \mathrm{O}\)
2 Adsorbs \(\mathrm{H}_{2} \mathrm{O}\)
3 Reacts with \(\mathrm{H}_{2} \mathrm{O}\)
4 None
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317360 Which is useful for separating benzoic acid from a mixture of benzoic acid and methyl benzoate?

1 \({\rm{Aq}}{\rm{. NaHC}}{{\rm{O}}_{\rm{3}}}\)
2 \({\rm{Dil}}{\rm{.HCI}}\)
3 \({\rm{Dil}}{\rm{. }}{{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{Dil}}{\rm{. HN}}{{\rm{O}}_{\rm{3}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317357 The correct match between items of Column-I and Column-II is:
Column I
Column II
A
Coloured impurity
P
Steam distillation
B
Mixture of o- and p-nitrophenol
Q
Fractional distillation
C
Crude Naphtha treatment
R
Charcoal
D
Mixture of glycerol and sugars
S
Distillation under reduced pressure

1 A - R, B - S, C - P, D - Q
2 A - P, B - S, C - R, D - Q
3 A - R, B - P, C - Q, D - S
4 A - R, B - P, C - S, D - Q
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317358 On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

1 Crystallization
2 Sublimation
3 Distillation
4 Chromatography
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317359 Silica gel is used for keeping away the moisture because it

1 Absorbs \(\mathrm{H}_{2} \mathrm{O}\)
2 Adsorbs \(\mathrm{H}_{2} \mathrm{O}\)
3 Reacts with \(\mathrm{H}_{2} \mathrm{O}\)
4 None
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317360 Which is useful for separating benzoic acid from a mixture of benzoic acid and methyl benzoate?

1 \({\rm{Aq}}{\rm{. NaHC}}{{\rm{O}}_{\rm{3}}}\)
2 \({\rm{Dil}}{\rm{.HCI}}\)
3 \({\rm{Dil}}{\rm{. }}{{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{Dil}}{\rm{. HN}}{{\rm{O}}_{\rm{3}}}\)
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317357 The correct match between items of Column-I and Column-II is:
Column I
Column II
A
Coloured impurity
P
Steam distillation
B
Mixture of o- and p-nitrophenol
Q
Fractional distillation
C
Crude Naphtha treatment
R
Charcoal
D
Mixture of glycerol and sugars
S
Distillation under reduced pressure

1 A - R, B - S, C - P, D - Q
2 A - P, B - S, C - R, D - Q
3 A - R, B - P, C - Q, D - S
4 A - R, B - P, C - S, D - Q
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317358 On heating, some solid substances change from solid to vapour state without passing through liquid state. The technique used for the purification of such solid substances based on the above principle is known as

1 Crystallization
2 Sublimation
3 Distillation
4 Chromatography
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317359 Silica gel is used for keeping away the moisture because it

1 Absorbs \(\mathrm{H}_{2} \mathrm{O}\)
2 Adsorbs \(\mathrm{H}_{2} \mathrm{O}\)
3 Reacts with \(\mathrm{H}_{2} \mathrm{O}\)
4 None
CHXI12:ORGANIC CHEMISTRY SOME BASIC PRINCIPLES AND TECHNIQUES

317360 Which is useful for separating benzoic acid from a mixture of benzoic acid and methyl benzoate?

1 \({\rm{Aq}}{\rm{. NaHC}}{{\rm{O}}_{\rm{3}}}\)
2 \({\rm{Dil}}{\rm{.HCI}}\)
3 \({\rm{Dil}}{\rm{. }}{{\rm{H}}_{\rm{2}}}{\rm{S}}{{\rm{O}}_{\rm{4}}}\)
4 \({\rm{Dil}}{\rm{. HN}}{{\rm{O}}_{\rm{3}}}\)