Question
Chemistry Question on General Principles and Processes of Isolation of Elements
Which of the following is not an ore of magnesium?
A
Carnallite
B
Magnesite
C
Dolomite
D
Gypsum
Answer
Gypsum
Explanation
Solution
Gypsum is an ore of calcium and not of magnesium. The structural formula of gypsum is CaSO4⋅2H2O.