Science, asked by sakaldeo996, 1 year ago

You are asked to prepare hard water in your laboratory. Select a group from the following groups of salts, any salt of which you may dissolve in distilled water to obtain hard water. (A) NaCl; Na₂SO₄ ; KCl(B) NaCl; CaCl₂; KCl(C) CaCl₂ ; CaSO₄ ; MgSO₄(D) Na₂SO₄ ; CaSO₄ ; MgSO₄

Answers

Answered by lakshay1128
2
Option c is the correct answer as hard water contains magnesium and calcium salts



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Answered by rdsilva206
1

Answer:

Option C

Explanation:

The answer is option C because hardwater contains magnesium sulphate,calcium sulphate and calcium chloride.

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