Question
Question: Which of the following is not an ore of magnesium?...
Which of the following is not an ore of magnesium?
A
Carnallite
B
Magnesite
C
Dolmite
D
Gypsum
Answer
Gypsum
Explanation
Solution
Gypsum is an ore of calcium and not of magnesium the structural formula of gypsum is CaSO4.2H2O.