Glycerol has:

1. 3 primary alcoholic groups

2. 3 secondary alcoholic groups

3. 1 primary alcoholic group and 2 secondary alcoholic groups

4. 2 primary alcoholic groups and 1 secondary alcoholic group

Wood spirit is:

1. CH₃OH

2. C₂H₅OH

3. CH₃CH₂CH₂OH

4. none of these

Phenol is:

1. a base weaker than NH₃

2. an acid stronger than carbonic acid

3. an acid weaker than carbonic acid

4. neutral

Purity of ether before using it as anaesthetic agent is tested by :-
1. KI + starch
2. CuSO₄
3. H₂SO₄
4. none of these

An organic compound A reacts with PCl₅ to give B. The compound B with sodium metal gives n-butane. Thus, A and B are:

1. C₂H₅OH and C₂H₅Cl
2. C₂H₅Cl and C₂H₅ONa
3. C₃H₇OH and CH₃CH₂CH₂OCl
4. C₄H₉OH and C₄H₉OCl

Which of the following undergoes dehydration most readily?

1. 1-phenyl-l-butanol

2. 1-phenyl-2-butanol

3. 2-phenyl-2-butanol

4. 2-phenyl-l-butanol

The enzyme which can catalyse the conversion of glucose to ethanol is:

1. zymase

2. diastase

3. maltase

4. invertase

Phenol on oxidation gives chloranil. The oxidant used is:

1. K₂S₂O₈

2. KMnO₄

3. KCIO₃ + HCl

4. none of these

A characteristic group test for phenolic gp. is:

1. Liebermann's nitroso reaction
2. coupling with diazonium salt

3. aqueous  FeCl₃ solution test
4. all of the above

Phenol is weakly acidic but does not react with NaHCO₃ like carboxylic acids hence:-

1. phenol is weaker than carbonic acid
2. phenol is stronger than carbonic acid
3. phenol is stronger than carboxylic acid
4. none of the above