An acyclic hydrocarbon P, of molecular formula `C_6H_(10)` gave acetone as the only organic product through the following sequence, in which Q is an intermediate organic compound

The structure of compound "Q" is

Options

A.
B.
C.
D.

Answer

B

Explanation

The final Ozonolysis product indicates that the alkene before ozonolysis is

Oxymercuration - demercuration hydration indicates that it is an alkyne. An alkyne on hydration gives a carbonyl compound which on reduction with NaBH4 gives 20alcohol, which under goes elimination to form an alkene according to Saytzeff.s rule via carbocation mechanism.