A) Fe
B) Cu
C) Ag
D) Al
Correct Answer: D
Solution :
Cryolite is the ore of aluminium. It is \[N{{a}_{3}}Al{{F}_{6}}\]. Note - The most abundant ore of aluminium is bauxite \[(A{{l}_{2}}{{O}_{3}}\,.\,\,2{{H}_{2}}O)\]. The most abundant ore of aluminium is bauxite
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