Q. When ammonium chloride is added to ammonia solution, the pH of the resulting solution will be
A) Increased
B) Seven
C) Decreased
D) Unchanged
Explanation
(c)
Due to common ion effect, rate of ionisation of $NH_{4}OH$ decreases, so power
$\lbrack OH^{-}\rbrack$ is obtained. Hence, pH value decrease.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.