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50 ml of 0.2 M NH(4)OH and 50 ml of 0.2 ...

50 ml of 0.2 M `NH_(4)OH` and 50 ml of 0.2 M HCl solutions are Mixed. pH of the resulting solution is (Given Kb of `NH_(4)OH=1 times 10^(-5)`)

A

5

B

4

C

7

D

9

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A
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