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What will be pH of 100 ml M/10 NH(4)OH+...

What will be pH of 100 ml `M/10 NH_(4)OH+100" ml " M/10" HCl "Solution at "25^(@)C`
(`"given" K_(b) [NH_(4)OH]=10^(-5))`

A

7.85

B

8.85

C

6.4

D

5.15

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