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An acidic solution of copper (II) sulpha...

An acidic solution of copper (II) sulphate containing some contaiminations of zinc and iron (II) ions was electrolysed till all the copper is deposited. If electrolysis is further continued for sometime, the product liberated at cathode is

A

`Fe`

B

`Zn`

C

`H_(2)`

D

Alloy of `Zn` and `Fe`

Text Solution

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The correct Answer is:
C
On further electrlysed the solution, there will be `Fe^(2+) & H^(+)` ions and electrode potential of `H^(+)` is greater. Hence it will reduce
`2H^(+) +2e^(-) rarr H_(2)`
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