In the electrolytic refining of Zn, is used as the cathode.

crude

Z n

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A l

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pure

Z n

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C a F_{2}

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Solution

The correct option is B $A l$
In the electrolytic refining of zinc, impure zinc is used as anode and acidified $Z n S O_{4}$ that is, $Z n S O_{4} + H_{2} S O_{4}$ is used as the electrolyte. Since zinc can react with even dil. $H_{2} S O_{4}$ , we use aluminium as the cathode instead of pure zinc.

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Q. In the electrolytic refining of Zn, is used as the cathode.

Q. In electrolytic refining, ______ is used as anode and _______ is used as cathode.

Which of the following is used as the cathode in electrolytic refining of zinc?

Q. In electrolytic refining, which one is the anode and which is cathode?

In the electrolytic refining process of zinc, it is given that the crude metal is made anode while the electrolyte is used is $H_{2} S O_{4}$ (dilute) + $Z n S O_{4}$ . The cathode should be:

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In the electrolytic refining of Zn, is used as the cathode.

The correct option is B AlIn the electrolytic refining of zinc, impure zinc is used as anode and acidified ZnSO4 that is, ZnSO4+H2SO4 is used as the electrolyte. Since zinc can react with even dil.H2SO4, we use aluminium as the cathode instead of pure zinc.

The correct option is B $A l$
In the electrolytic refining of zinc, impure zinc is used as anode and acidified $Z n S O_{4}$ that is, $Z n S O_{4} + H_{2} S O_{4}$ is used as the electrolyte. Since zinc can react with even dil. $H_{2} S O_{4}$ , we use aluminium as the cathode instead of pure zinc.