Question

Among the following organic halides in the increasing order of their dehydrohalogenation reactions in the presence of alcoholic KOH

• A. A<B<C<D
• B. D<B<C<A
• C. A<C<B<D
• D. B<C<A<D

Hint:

The structure of the organic halide and the stability of the intermediate influence the rate of dehydrohalogenation reactions.

Answer 1

The Correct Option is A

The dehydrohalogenation reactions are typically influenced by the structure of the organic halides. In the presence of alcoholic KOH, the order of reactivity can be related to the availability of the halide group for elimination and the stability of the intermediate. The molecule with the most favorable structure for elimination will undergo the reaction more readily. Upon considering the structure of the organic halides A, B, C, and D, the correct increasing order of dehydrohalogenation reaction is: \[ A<B<C<D \] Thus, the correct answer is \( \boxed{1} \).