1.

Which of the following statements is correct ? IfE_(Cu^(2+)|Cu)^(@) = 0.34 V and E_(Sn^(2+)|Sn)^(@) = -0.136 V , E_(H^(+)|H_2)^(@) = -0.0V

Answer»

`Cu^(+2)` IONS can be reduced by `H_2(g)`
Cu can be oxidized by `H^(+)`
`Sn^(2+)` ions can be reduced by `H_2`
Sn can be oxidized by `Cu^(2+)`

SOLUTION :`Sn^(+2) // Sn`
`2H^(OPLUS) //H_2 , Pt `
`Cu^(+2)// Cu`
`Cu^(+2) + 2e^(-) to Cu`


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