Question

An alkyl halide on reaction with sodium in the presence of either gives 2, 2, 5, 5-tetramethyl hexane. The alkyl halide possibly is?

• A. 1-chloropentane
• B. 1-chloro-2, 2-dimethyl propane
• C. 3-chloro-2, 2-dimethyl butane
• D. 2-chloro-2-methyl butane

Answer 1

The correct option is B 1-chloro-2, 2-dimethyl propane

Given product is

It is symmetric across 3,4 bond so the reactant is

1-chloro 2,2-dimethyl propane is answer.