Statement I: During Electrolytic refining, the pure metal i…

Chemistry General Principles and Processes of Isolation of Elements ( Not In Syllabus ) JEE Main 2023 Single Correct MCQ

Published by: CGP EDU Academic Team

Published on: August 13, 2026

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 A1 2 O 3 is mixed with Na 3 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:

Statement I is incorrect but Statement II is correct

Both Statement I and Statement II are incorrect

Statement I is correct but Statement II is incorrect

Both Statement I and Statement II are correct

Text Solution

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The correct answer is:

In Electrolytic refining, the pure metal is used as cathode and impure metal is used as anode.

Na 3 AlF 6 is added during electrolysis of A1 2 O 3 to lower the melting point and increase conductivity.

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