Class 10 Science
Class 10 science important questions with answers pdf
NCERT Solutions Class 10 Science
NCERT questions of science class 10
Important questions Science NCER
Class 10 Study 2022-2023
NCERT Class 10 Science
What are the causes of hardness of water?
Share
Temporary hardness of water is due to the presence of calcium and magnesium bicarbonates in it. Permanent hardness of water is due to the presence of chlorides and sulphates of calcium and magnesium in it.