A) \[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolysis of alumina, for decreasing electrical conductivity
B) \[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolysis of alumina for lowering the melting point of alumina
C) \[N{{a}_{3}}Al{{F}_{6}}\]and is used in the electrolytic purification of alumina
D) \[N{{a}_{3}}Al{{F}_{6}}\]and is used in the electrolysis of alumina
Correct Answer: B
Solution :
Cryolite \[(N{{a}_{3}}Al{{F}_{6}})\] increases electrical conductivity and lowers the melting point of alumina.You need to login to perform this action.
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