Which is/are the ore(s) of calcium?Select an answerALimestoneBGypsumCDolomiteDAll of them
Question
Which is/are the ore(s) of calcium?
Select an answer:
- A) Limestone
- B) Gypsum
- C) Dolomite
- D) All of them
Solution
The correct answer is D. All of them.
Here's why:
A. Limestone: It is a sedimentary rock composed primarily of calcium carbonate (CaCO3) in the form of the mineral calcite.
B. Gypsum: It is a soft sulfate mineral composed of calcium sulfate dihydrate (CaSO4·2H2O).
C. Dolomite: It is an anhydrous carbonate mineral composed of calcium magnesium carbonate (CaMg(CO3)2).
So, all of them (Limestone, Gypsum, Dolomite) are ores of calcium.
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