| Consider the following statements |
| 1. Hardness of water depends upon its soap consuming power. |
| 2. Temporary hardness is due to bicarbonates of magnesium and calcium. |
| 3. Permanent hardness of water is due to sulphate and/or chloride of calcium and magnesium. |
| 4. Permanent hardness can be removed by boiling. |
| Which of the statements given above are correct? |
A) 1, 2, 3 and 4
B) 1, 2 and 3
C) 2 and 3
D) 3 and 4
Correct Answer: B
Solution :
[b] Temporary hardness can be removed by boiling.
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