Question

Arrange the following halides in decreasing order of their reactivity towards dehydrohalogenation: 

• A. B > D > A > C
• B. B > D > C > A
• C. D > B > C > A
• D. D > B > A > C

Hint:

Dehydrohalogenation reactions are influenced by the stability of the resulting product and the ease with which the leaving group departs.

Answer 1

The Correct Option is C

Reactivity in dehydrohalogenation increases with the availability of a more stable leaving group and the ability to stabilize the resulting alkene. Thus, D>B>C>A.