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Addition of which compounds shall make water hard?

A. Chlorides of Calcium and Magnesium
B. Sulphates of Calcium and Magnesium
C. Carbonates of Calcium and Magnesium

Option: 1

A & C only


Option: 2

B & C only


Option: 3

A and B only


Option: 4

A, B and C


Answers (1)

best_answer

Hard water is the water that contains salts of calcium and magnesium such as bicarbonates, chlorides, and sulfates.

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shivangi.shekhar

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