A) \[F{{e}_{3}}{{O}_{4}}\]
B) \[N{{a}_{3}}Al{{F}_{6}}\]
C) \[N{{a}_{2}}A{{l}_{2}}{{O}_{3}}\]
D) All of these
Correct Answer: B
Solution :
Cryolite is an ore of \[Al\] containing \[N{{a}_{3}}Al{{F}_{6}}\].
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