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 isA. `Fe`B. `Zn`C. `H_(2)`D. Alloy of `Zn` and `Fe`

An acidic solution of copper (II) sulphate containing some contaiminat

1.	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 isA. `Fe`B. `Zn`C. `H_(2)`D. Alloy of `Zn` and `Fe`
Answer» Correct Answer - 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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What are elementary reactions ?

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 isA. `Fe`B. `Zn`C. `H_(2)`D. Alloy of `Zn` and `Fe`

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