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Electrolysis and Electrolytes

The dissociat...

Question

The dissociation of ${N H}_{4} O H$ decreases on addition of ${N H}_{4} C l$ . If true write 1, else write 0.

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Solution

Common ion effect
The degree of dissociation of a weak electrolyte is suppressed by the addition of another electrolyte containing the common ion.
So dissociation of $N H_{4} O H$ decreases on addition of $N H_{4} C l$ as they have $N H_{4}^{+}$ as common ion.

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