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Which of the statements given below is/a...

Which of the statements given below is/are correct?
Permanent hardness of water is due to the presence of soluble.
1. chloride of calcium
2. bicarbonate of calcium
3. sulphate of magnesium
4. bicarbonate of magnesium
Select the correct answer using the codes given below.

A

1 only

B

1 and 3

C

2 and 4

D

1, 2 and 3

Text Solution

Verified by Experts

The correct Answer is:
B
Chlorides and sulphates of calcium and magnesium are responsible for permanent hardness of water.
Note: Bicarbonates are responsible for temporary hardness of water.
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