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  4. Cryolite and fluorspar are mixed with Al2O3 during electrolysis for extraction of aluminium to

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Q. Cryolite and fluorspar are mixed with $Al_2O_3$ during electrolysis for extraction of aluminium to

JIPMERJIPMER 2015General Principles and Processes of Isolation of Elements

Solution:

Cryolite $(Na_3AlF_6)$ and fluorspar ${(CaF_2)}$ reduce the melting point of the mixture and increase its conductivity.