What will be the reduction potential of a hydrogen electrode which is filled with HCl solution of pH value 1.0? (at 298 Kelvin)

Options

A. `-59.15V`
B. `+59.15V`
C. `+59.15mV`
D. `-59.15mV`

Answer

D

Explanation

`E_(H^(+)//H_(2))=E_(H^(+)//H_(2))^(0)-(0.05915)/(1)"log"(1)/([H^(+)])`
`=0+0.05915log[H^(+)]"volt"=-0.05915pH`
`=-0.05915xx1=-0.05915V=-59.15mV`.