A. Sodium sulfate
A.
B. Magnesium sulfate
B.
C. Calcium chloride
C.
D. Potassium carbonate
D.
Correct Answer: B
সঠিক উত্তর: B
Explanation
ব্যাখ্যা
Epsom salt is chemically known as magnesium sulfate, and its formula is MgSO4·7H2O. It is a hydrated form, meaning it contains water molecules in its structure, specifically seven water molecules per unit of magnesium sulfate. This heptahydrate form is the common form of Epsom salt.