A ketone upon reaction with ethyl magnesium bromide (Grignard reagent) followed by hydrolysis gave a product which on dehydration gave an alkene. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is

Question

A ketone upon reaction with ethyl magnesium bromide (Grignard reagent) followed by hydrolysis gave a product which on dehydration gave an alkene. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is (A) dimethyl ketone (B) ethyl methyl ketone (C) diethyl ketone (D) ethyl propyl ketone.

Tardigrade Admin · Accepted Answer

This alkene can be obtained from

As the alcohol is produced by reaction as C 2 H 5 MgBr with ketone thus the alcohol should be tertiary (I).

Q. A ketone upon reaction with ethyl magnesium bromide (Grignard reagent) followed by hydrolysis gave a product which on dehydration gave an alkene. The alkene on ozonolysis gave diethyl ketone and acetaldehyde. The ketone is

dimethyl ketone

ethyl methyl ketone

diethyl ketone

ethyl propyl ketone.

This alkene can be obtained from

As the alcohol is produced by reaction as $C_{2} H_{5} M g B r$ with ketone thus the alcohol should be tertiary (I).