A) increase in pH
B) decrease in pH
C) no change in pH
D) change in pH that cannot be predicted
Correct Answer: A
Solution :
Addition of sodium acetate in acetic acid solution, due to common ion\[\text{NH}_{\text{4}}^{\text{+}}\text{,}\] The supressed, ionisation of acetic acid so concentration of \[\text{ }\!\![\!\!\text{ }{{\text{H}}^{+}}\text{ }\!\!]\!\!\text{ }\] decreases. Hence, pH of solution increases.
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