A hydrocarbon (A) adds one mole of hydrogen in the presence of platinum gives hexane When (A) was oxidised with `KMnO_(4)` it gave a single carboxylic acid. Containing three carbon atoms Give the structure and name of (A)

Explanation

(i) Since the hydrocarbon [A] adds one mole of hydrogen in the presence of catalyst to give n-hexane, it must correspond to an alkene i.e., [A] is hexene.
(i) Since the alkene [A] upon vigorous oxidation gives a single carboxylic acid with three carbon atoms, this means that the alkene must be symmetrical i.e., [A] must be hex-3-ene.
The reactions involved are given :