In the metallurgy of aluminium, – InterviewSolution

InterviewSolution

1.	In the metallurgy of aluminium,
Answer» SOLUTION :(i) Aluminium is OBTAINED by electrometallurgical process by CARRYING out an electrolysis of fused alumina `Al_(2)O_(3)` in cryolite `Na_(3)AlF_(6)`. (ii) This MIXTURE hasa very high melting point and relatively less electrical CONDUCTIVITY. (iii) To lower the melting point of the mixture and increase the electrical conductivity `CaF_(2)` is added.

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