Compound 'A' is prepared by oxidation of compound 'B' with alkaline `KMnO_(4)`. Compound 'A' on reduction with lithium aluminium hydride gets converted back to compound 'B'. When compound 'A' is heated with compound 'B' in the presence of `H_(2)SO_(4)`, it produces fruity smell of compound 'C'. To which family, the compounds 'A', 'B' and 'C' belong to ?

Explanation

(i). Since compound 'A" is obtained by oxidation of compound 'B' and reduction of compound 'B' with `LiAlH_(4)` gives back compound 'A', therefore, both compounds 'A' and 'B' have the same number of carbon atoms.
(ii) Since compound 'A' when heated with compound 'B' in presence of `H_(2)SO_(4)`, produces fruity smell of Compound 'C', therefore, 'C' must be an ester, 'A' must be a carboxylic acid and 'B' must be an alcohol.

Thus, 'A' is a carboxylic acid, 'B' is an alcohol and 'C' is an ester.