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The pH of a weak solution of ammonium h...

The pH of a weak solution of ammonium hydroxide has been measured . If ammonium chloride is now added

A

the pOH will decrease

B

the pH will increase

C

the pH will decrease

D

the acidity will decrease

Text Solution

Verified by Experts

The correct Answer is:
C
The concentration of `(OH^-)` will decrease due to the common ion effect. Since (OH) x `(H^+) = 10^(-14)` , `H^+` must increase pH decreases and pOH increases.
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