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Hardness of water is due to the presence of salts of ____________

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in Engineering Chemistry II by (789k points)
Hardness of water is due to the presence of salts of ____________

(a) Potassium

(b) Chlorine

(c) Magnesium

(d) Boron

I got this question by my college professor while I was bunking the class.

The origin of the question is Hardness of Water topic in portion Water and its Treatment of Engineering Chemistry II

1 Answer

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Best answer
Right option is (c) Magnesium

The best explanation: Hardness of water is due to the presence of salts of calcium and magnesium. Hard drinking water may have moderate health benefits, but can pose serious problems in industrial settings, where water hardness is monitored to avoid costly breakdowns in boilers, cooling towers, and other equipment that handles water.

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