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Given below are two statements:

Statement I : During Electrolytic refining, the pure metal is made to act as anode and its impure metallic form is used as cathode.

Statement II : During the Hall-Heroult electrolysis process, purified \mathrm{Al}_2 \mathrm{O}_3 is mixed with \mathrm{Na}_3 \mathrm{AlF}_6 to lower the melting point of the mixture.

In the light of the above statements, choose the most appropriate answer from the options given below:

Option: 1

Statement I is correct but Statement II is incorrect


Option: 2

Both Statement I and Statement II are incorrect


Option: 3

Both Statement I and Statement II are correct


Option: 4

Statement I is incorrect but Statement II is correct


Answers (1)

best_answer

Mixture of \mathrm{CaF}_2 \, \, \& \, \, \mathrm{Na}_3 \mathrm{AlF}_6 decreasing the M.P. of \mathrm{Al}_2 \mathrm{O}_3.
In electrolytic definning, pure metal is always deposited at the cathode

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Ritika Jonwal

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