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:

Pure Zinc

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Zn-Hg Amalgam

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Aluminum

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All of the above

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Solution

The correct option is C
Aluminum

For the given electrolyte, Pure Zinc cathode gets dissolved in dilute $H_{2} S O_{4}$ and thus is impractical. Hence Aluminum is used as the cathode.

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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:

Q. Assertion :In electrolyte refining of metal, impure metal is made cathode while a strip of pure metal is used as anode. Reason: The pure metal gets deposited at anode as anode mud.

Name two metals that are purified by electrolytic decomposition. Mention the anode, cathode and the electrolyte used in the refining process. At which electrode would be the pure metal deposited?

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

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In the electrolytic refining process of Zinc, it is given that the crude metal is made anode while the electrolyte is used is H2SO4 (dilute) + ZnSO4 . The cathode should be:

The correct option is C Aluminum For the given electrolyte, Pure Zinc cathode gets dissolved in dilute H2SO4 and thus is impractical. Hence Aluminum is used as the 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:

The correct option is C
Aluminum

For the given electrolyte, Pure Zinc cathode gets dissolved in dilute $H_{2} S O_{4}$ and thus is impractical. Hence Aluminum is used as the cathode.