Exams › JEE Advanced › Chemistry
Which of the following is NOT an ore of magnesium?
- Carnallite
- Dolomite
- Calamine
- Sea water
Correct answer: Calamine
Solution
Carnallite (KCl.MgCl2.6H2O), Dolomite (MgCO3.CaCO3), and sea water are all significant sources of magnesium. Calamine (ZnCO3) is an ore of zinc, not magnesium.
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