The strongest acid among the following aromatic compounds is -

The reaction products of C₆H₅-O-CH₃+ HI $\stackrel{\mathrm{A}}{\to }$

1. C₆H₅OH + CH₃l

2. C₆H₅l + CH₃OH

3. C₆H₅CH₃ +HOI

4. C₆H₆ + CH₃Ol

Which of the following react with HBr at faster rate?

Which are not cleaved by HIO₄?
I : glycerol
II : glycol
III: 1, 3-propanediol
IV: methoxy-2-propanol

1. I, II, III, IV

2. I, II

3. II, III

4. III, IV

The reducing agent among the following is -

1. CrO₃/H⁺

2. KMnO₄

3. LiAlH₄

4. O₃

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 the above

Phenol is:

1. a stronger base than NH₃

2. an acid stronger than carbonic acid

3. an acid weaker than carbonic acid

4. None of the above

Purity of ether before using it as anaesthetic agent is tested by :-

1. KI + starch

2. CuSO₄

3. H₂SO₄

4. none of these