A) Magnesite
B) Dolomite
C) Gypsum
D) Carnallile
Correct Answer: C
Solution :
Gypsum\[(CaS{{O}_{4}}\cdot 2{{H}_{2}}O)\]is an ore of Calcium. Dolomite \[(CaC{{O}_{3}}\cdot MgC{{O}_{3}})\]magnesite\[(MgC{{O}_{3}})\]and carnaliteare\[(KCl\cdot MgC{{l}_{2}}\cdot 6{{H}_{2}}O)\] the ores of magnesium.
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