Q. Acidity of diprotic acids in aqueous solutions increases in the order :
A) $H_2S < H_2Se < H_2Te$
B) $H_2Se < H_2S < H_2Te$
C) $H_2Te < H_2S < H_2Se$
D) $H_2Se < H_2Te < H_2S$
Explanation
[Solution] Bond strength falls down the group, so acidity rises: $H_2S < H_2Se < H_2Te$. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.