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A buffer solution contains 1 mole of (NH...

A buffer solution contains `1` mole of `(NH_(4))_(2)SO_(4)` and `1` mole of `NH_(4)OH(K_(b)=10^(-5))`. The `pH` of solution will be:

A

5

B

9

C

5.3

D

8.7

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The correct Answer is:
d
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