JEE Main 2015 Question Paper

Section: Chemistry

Question : 8 of 90

Marks: +1, -0

In the context of the Hall-Heroult process for the extraction of Al, which of the following statements is false?

[Main 2015]

Al2O3 is mixed with CaF2 which lowers the melting point of the mixture and brings conductivity
Al3+ is reduced at the cathode to form Al
Na3AlF6 serves as the electrolyte
CO and CO2 are produced in this process

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