KCET 2024 Chemistry Solved Paper

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Question : 8 of 60

Marks: +1, -0

The incorrect statement about Hall-Heroult process is:

Carbon anode us oxidized to CO and CO2.
Na3AlF6 helps to decrease the melting point of the electrolyte.
CaF2 helps to increase the conductivity of the electrolyte.
Oxidation state of hydrogen changes in the overall cell reaction.

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