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The reduction prtential of hydrgen delct...

The reduction prtential of hydrgen delctrode when placed I buffer solution is fournd to be ` -0.423 V`. The pH of the buffer is .

A

`10`

B

`4`

C

`7`

D

`12`

Text Solution

Verified by Experts

The correct Answer is:
C
` -0 413 = 0-0. 059 log. 1/([H^+]`
or `(0.414)/(0.059) =- log H^+ = pH or pH =7` .
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