Permanent hardness in water is due to the presence of:
A
Ca2+,Mg2+
B
CaCl2,MgCl2
C
CaCO3,MgCO3
D
all of the above
Medium
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Updated on : 2022-09-05
Solution
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Correct option is B)
Correct Answer: Option B
Explanation:
The permanent hardness of water is due to sulfates and chlorides of Magnesium (Mg) and Calcium (Ca). The bicarbonates of Magnesium (Mg) and Calcium (Ca) cause temporary hardness.