A) Carnallite
B) Dolomite
C) Calamine
D) Sea water
Correct Answer: C
Solution :
Carnallite \[(KCl.\,\,MgC{{l}_{2}}.\,\,6{{H}_{2}}O)\], dolomite \[(MgC{{O}_{3}}.\,CaC{{O}_{3}})\] and sea water are the ores of magnesium. Calamine \[(ZnC{{O}_{3}})\] is an ore of zinc.
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