(a) Give chemical tests to distinguish between
(i) Phenol and Benzoic acid
(ii) Benzophenone and Acetophenone
(b) Write the strucutre of the main products of following reactions :
(i)
(ii) `H_(3)C - C -= C- H overset(Hg^(2+),H_(2)SO_(4))rarr`
.

Explanation