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:

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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.