Q. Which one of the following salts on being dissolved in water gives pH>7 at $25℃$?
A) $KCN$
B) $KNO_{3}$
C) $NH_{4}Cl$
D) $NH_{4}CN$
Explanation
(a)
$KCN$ is a salt of weak acid and strong base hence, on being dissolved in water gives basic solution $i.e$., $pH > 7\ at\ 25℃$ .
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.