Which of the following is not an ore of magnesium? — Metallurgy and Isolation of Elements Chemistry Question
Question
Which of the following is not an ore of magnesium?
Answer: D
💡 Solution & Explanation
Step 1: Examine the composition of each mineral: Carnallite is KCl.MgCl2.6H2O; Magnesite is MgCO3; Dolomite is CaMg(CO3)2. Step 2: Gypsum is a hydrated calcium sulfate mineral with the formula CaSO4.2H2O. Step 3: Since Gypsum contains Calcium and Sulfur but no Magnesium, it is not an ore of magnesium, matching option (d).
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