MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryHydrogenPrevious Year Questions

Which of the following is responsible for the permanent hardness of water? (CPMT 2010)

A.Calcium bicarbonate (b) Sodium chloride

C.Magnesium bicarbonate (d) Calcium sulphate

Explanation

Permanent hardness is due to the presence of chlorides and sulphates salts of calcium and magnesium. Therefore, the correct option is calcium sulphate 4 CaSO .

Back to Question Bank

Practice More Like This

Take chapter-wise tests, track your progress, and master Hydrogen.

Start Free Practice →