Chemistry Ionic Equilibrium Hydrogen Ion Concentration- pH Scale and Buffer Solution Single Correct MCQ
Published on: August 14, 2026

A solution is 0.1 M in CH 3 COOH and 0.1 M in CH 3 COONa. Which of the following will change its pH significantly?

A
Addition of small amount of water
B
Addition of small amount of HCl
C
Addition of small amount of NaOH
D
None will change the pH significantly.

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Text Solution

Verified by Experts
The correct answer is:
D

This is an acidic buffer system ( in equal concentration).

It resists change in pH against small amounts of acid or base due to common ion effect.
It is also not significantly affected by dilution.

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