Chemistryhard · Past Paper
The most common ore of Magnesium found in sea water is:
AMagnesite
BDolomite
CCarnallite
DEpsom salt
✓ Correct Answer: C — Carnallite
Carnallite (KMgCl3.6H2O) is a major source of magnesium, often found in evaporite deposits and seawater.
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