Chemistry, asked by nirmalmishra, 7 months ago

7. Which of the following groups of ions makes the water hard? (1994)
a) Sodium and bicarbonate
(b) Magnesium and chloride
(c) Potassium and sulphate
(d) Ammonium and chloride

Answers

Answered by nishant25feb

0

Answer:

In scientific terms, water hardness is generally the amount of dissolved calcium and magnesium in water.

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