A compound A with molecular formula C_(5)H_(10)O gave a positive 2,4-DNP test but a negative Tollens reagent test. It was oxidised to carboxylic acid B with molecular formula C_(3)H_(6)O_(2) when treated with alkaline KMnO_(4) under vigorous conditon. Sodium salt of B gave a hydrocarbon C on kolne's electrolytic reduction. Identify A,B and C and write the chemical equations for the reaction.

A compound A with molecular formula C_(5)H_(10)O gave a positive 2,4-D

1.	A compound A with molecular formula C_(5)H_(10)O gave a positive 2,4-DNP test but a negative Tollens reagent test. It was oxidised to carboxylic acid B with molecular formula C_(3)H_(6)O_(2) when treated with alkaline KMnO_(4) under vigorous conditon. Sodium salt of B gave a hydrocarbon C on kolne's electrolytic reduction. Identify A,B and C and write the chemical equations for the reaction.
Answer» Solution :Structures of A,B and C are derived as under: `C_(5)H_(10)O` gives positive 2,4-DNP test ut a negative TOLLENS. reagent test, therefore it is a ketone. Since, it givescarboxylic acid `C_(3)H_(6)O_(2)` on vigorous oxidationit should be 3- pentanone.