A) \[N{{a}_{3}}Al{{F}_{6}}\]and is used in the electrolysis of alumina for lowering the melting point of alumina only
B) \[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolytic refining of alumina
C) \[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolysis of alumina for decreasing electrical conductivity
D) \[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolysis of alumina for lowering the melting point and increasing the conductivity of alumina.
Correct Answer: D
Solution :
\[N{{a}_{3}}Al{{F}_{6}}\] and is used in the electrolysis of alumina for lowering the melting point and increasing the conductivity of alumina.
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