MCQ
On adding solid potassium cyanide to water
- ✓$pH $ will increase
- B$pH$ will decrease
- C$pH $ will not change
- DElectrical conductance will not change
✓
Answer
Correct option: A.
$pH $ will increase
(a) $C{N^ - } + {H_2}O \to HCN + O{H^ - }$
Because $O{H^ - }$ concentration is increased.
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