A hydrocarbon A, of C_8H_10, on ozonolysis gives compound (B), C_4H_6O_2 only. The compound (B) can also be obtained from alkyl bromide (C), C_3H_5Br, upon treatment with magnesium in dry ehter, followed by CO_2 and acidification. Identify (A), (B) and (C) and aslo give equations for the reactions.

A hydrocarbon A, of C_8H_10, on ozonolysis gives compound (B), C_4H_6O

1.	A hydrocarbon A, of C_8H_10, on ozonolysis gives compound (B), C_4H_6O_2 only. The compound (B) can also be obtained from alkyl bromide (C), C_3H_5Br, upon treatment with magnesium in dry ehter, followed by CO_2 and acidification. Identify (A), (B) and (C) and aslo give equations for the reactions.
Answer» Solution :The compound (B) is formed via the formation of GRIGNARD reagent followed by reaction with `CO_2` and ACIDIFICATION. It shows that `C_3H_5Br` behaves like SATURATED compound. It is only POSSIBLE if `C_3H_5Br` is bromocyclopropane (Cyclopropylbromide). (A) on ozonolysis GIVES only (B), hence it should be symmetrical unsaturated hydrocarbon.