An organic compound (A) of molecular formula `C_(7)H_(8)` on oxidation with air and in presence of `V_(2))O_(5)` to form (B) of molecular formula `C_(7)H_(6)O`. (B) on reduction with lithium aluminium hydride to form ( C) of molecular formula `C_(7)H_(8)O`. Identify (A), (B) and ( C) and explain the reactions.

Explanation

(i) (A) on oxidation with air and `V_(2)O_(5)` gives (B).
`underset((A))(C_(6)H_(5)CH_(3))underset(V_(2)O_(5))overset((O))tounderset((B))(C_(6)H_(5)CHO)`
(ii) (B) on reduction with `LiAlH_(4)` gives C.
`C_(6)H_(5)CHunderset(LiAlH_(4))overset([H])tounderset((C))(C_(6)H_(5)CH_(2)OH)`