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In a buffer solution containing equal co...

In a buffer solution containing equal concentration of `B^(-)` and `HB`, the `K_(b)` for `B^(-)` is `10^(-10)`. The `pH` of buffer solution is

A

`10`

B

`7`

C

`6`

D

`4`

Text Solution

Verified by Experts

The correct Answer is:
D
`pH=pK_(a)+log``([CB])/([Acid])`
`pK_(w)-pK_(b)+log``([CB])/([Acid])`
`=14-10+log 1~~4`
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