1.

Standard electrode potential (E^(0)) for OCl^(-) // Cl^(-) and Cl^(-)// (1)/(2) Cl_2are respectively 0.94 V and -1.36 V . The E^(@) value of OCl^(-) //Cl_2 will be

Answer»

`-0.42 V `
`-2.20 V `
`0.52 V `
`1.04 V `

Solution :(1) `2H^(OPLUS) + 2e^(-) + OCl^(-) to Cl^(-) + H_2O , (2 X 0.94) ` (2)` Cl^(Ɵ) to (1)/(2) Cl_2 + 1e^(-) , (-1.36 xx 1)`
(3) `2H^(oplus) + 1 e^(-) + OCl^(Ɵ) to (1)/(2) Cl_2 + H_2O , (1 xx E_3^(0)) (3) = (1) + (2)`
` 1 xx E_3^(0) = (2 xx 0.94 ) + (-1.36 xx 1) , E_(3)^(0)=((1.88- 1.36)/(1)) = 0.52 V `


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