Question

In the compound given below The correct order of the acidity of the positions (X), (Y) and (Z) is [IIT-JEE Screening 2004]
A) (Z) > (X) > (Y) B) (X) > (Y) > (Z) C) (X) > (Z) > (Y) D) (Y) > (X) > (Z)

Answer 1

Answer:

Explanation:

carboxylate ion is resonance stabilised so it has the most acidic hydrogen. So, X comes first. Next is Y because of electron withdrawing effect of COOH group + the instability due to presence of positive charge on nitrogen. Then comes Z, which is least acidic of the three due to presence of positive charge only