Q.

The hydrogen electrode is dipped in a solution at 250C. It’s reduction potential is - 0.177V. The pH of the solution would be 

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a

2

b

1

c

3

d

4

answer is B.

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Detailed Solution

For hydrogen electrode ER.P=0.059×PHPH=ER.P(0.059)=0.1770.059=3

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