Q. Which one of the following pair shows buffer’s solution?
A) $NaCl + NaOH$
B) $CH_{3}COONa + CH_{3}COOH$
C) $CH_{3}COOH + CH_{3}COONH_{4}$
D) $H_{2}SO_{4} + CuSO_{4}$
Explanation
(b)
The buffer solutions are those solutions which resists the change in its pH value on addition of small amount of a base or an acid. $CH_{3}COOH\ and\ CH_{3}COONa$ solution is buffer solution because it is a solution of weak acid and its salt with strong base.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.