question_answer

The major product formed in the following reaction is?  [JEE Online 15-04-2018 (II)]

A)                                

B)       

C)

D)         

Correct Answer: A

Solution :

The major product formed is represented by option (A). Nitro group is electron withdrawing group. Hence, increases the acidity of H atom (attached to C atom bearing nitro group). Hence, removal of H becomes easy. Also, the newly formed double bond is in conjugation with nitro group. Note: In the given reaction, a molecule of HCl is lost and \[C=C\] double bond is formed. THus, it is dehydrohalogenation reaction.