In the electrolysis of alumina, cryolite...

In the electrolysis of alumina, cryolite is added to

A

lower the melting point of alumina

B

increase the electrical conductivity

C

both (a) and (b)

D

remove impurities from alumina

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The correct Answer is:

C

Cryolite `..Na_(3)AlF_(6)..` is added to alumina to increase the conductivity and to decrease the melting point during electrolysis

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