Question

Which of the following daizonium salts when boiled with dil. H₂ SO₄ gives the corresponding phenol most difficult ?

Answer 1

The correct option is (A)

Aromatic o 1 amines containing electron donating groups at O- and P- positions undergo diazotisation much more readily than aniline while those containing electron with drawing groups such as - NO₂ , - SO₃ H, COOH,etc.are difficult to diazotise.