When the sample of copper with the zinc impurity is to be purified by electrolysis, the appropriate electrodes are:

anode - pure zinc, cathode - pure copper

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anode - impure zinc, cathode - pure copper

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anode - impure zinc, cathode - impure sample

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anode - impure sample, cathode - pure copper

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Solution

The correct option is C anode - impure sample, cathode - pure copper
Impure sample is made the anode and pure copper acts as the cathode. From impure sample Zn goes into the solution as Zn ion and copper ion in deposited as pure copper at cathode after reduction.

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Similar questions

When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes of cathode and anode are:

Q. During electrolytic refining of copper.
(a) Pure copper acts as anode.
(b) Pure copper acts as cathode.
(c) Impure copper acts as anode.
(d) Impure copper acts as cathode.

Q. When an impure copper rod acts the anode and the pure copper rod acts as the cathode in an electrolysis experiment, then which of the following occurs?

Q. Refining of impure copper with zinc impurity is to be done. The appropriate electrodes are:

In the electrolytic refining of Copper (electrolyte is $C u S O_{4}$ solution + dil $H_{2} S O_{4}$ _;Pure Cu cathode and Impure Cu anode), metallic impurities having lower oxidation potential than Cu are deposited as __ sludge.

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When the sample of copper with the zinc impurity is to be purified by electrolysis, the appropriate electrodes are:

The correct option is C anode - impure sample, cathode - pure copperImpure sample is made the anode and pure copper acts as the cathode. From impure sample Zn goes into the solution as Zn ion and copper ion in deposited as pure copper at cathode after reduction.

The correct option is C anode - impure sample, cathode - pure copper
Impure sample is made the anode and pure copper acts as the cathode. From impure sample Zn goes into the solution as Zn ion and copper ion in deposited as pure copper at cathode after reduction.