Q. Which one of the following pairs of solution is not an acidic buffer ?
A) $H_2CO_3$ and $Na_2CO_3$
B) $H_3PO_4$ and $Na_3PO_4$
C) $HClO_4$ and $NaClO_4$
D) $CH_3COOH$ and $CH_3COONa$
Explanation
[Solution] $HClO_4$ is a strong acid, so $HClO_4$ and $NaClO_4$ cannot form an acidic buffer. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.