question_answer

Aluminium is produced on a large scale by electrolysis of alumina, dissolved in fused cryolite and a little fluorspar. These two electrolytes, cryolite and fluorspar are respectively

A) \[N{{a}_{3}}Al{{F}_{6}}\]  and \[Ca{{F}_{2}}\]

B) \[Al{{F}_{3}}\] and \[KF\]

C) \[A{{l}_{2}}{{C}_{6}}\] and \[KCl\]

D) \[KCl.MgC{{l}_{2}}.6{{H}_{2}}O\] and \[Mg{{F}_{2}}\]