The compound on dehydrogenation gives a ketone. The original compound is `:`

Phenol overset(Zn)underset(Delta)rarrX . The compound X on acylation gives aliphatic aromatic ketone. The reaction is :

Primary alcohols on dehydrogenation give aldehydes.

An aromatic compound C_(7)H_(7)Cl on oxidation gives another aromatic compound which on soda lime deccarboxylation produces benzene. The original compound is