MCQ
When solid potassium cyanide is added in water then
- ✓$pH$ will increase
- B$pH$ will decrease
- C$pH$ will remain the same
- DElectrical conductivity will not change
✓
Answer
Correct option: A.
$pH$ will increase
(a) $KCN + {H_2}O⇌KOH + HCN$.
$KOH$ is a strong base and $HCN$ is a weak acid.
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