A : Permanent hardness of water is due to the presence of chlorine or sulphates of Ca or Mg.
R : Permanent hardness is removed by boiling

Options

A. If both Assertion & Reason are true and the reason is the correct explanation of the assertion, then mark (1)
B. If both Assertion & Reason are true but the reason is not the correct explanantion of the assertion, then mark (2)
C. If assertion is true statements but Reason is false, then mark (3)
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To analyze the statements provided in the question, we will break down the assertion (A) and the reason (R) step by step.

### Step-by-Step Solution:

1. **Understanding Permanent Hardness**:
- Permanent hardness of water is primarily caused by the presence of chlorides and sulfates of calcium (Ca) and magnesium (Mg).
- This means that the assertion (A) is **true** as it correctly identifies the substances that cause permanent hardness.

2. **Effect of Boiling on Hardness**:
- Permanent hardness cannot be removed by boiling. Boiling is effective for temporary hardness, which is caused by bicarbonates of calcium and magnesium.
- Since permanent hardness is due to chlorides and sulfates, boiling does not precipitate these ions out of the solution.
- Therefore, the reason (R) is **false** because it incorrectly states that permanent hardness can be removed by boiling.

3. **Conclusion**:
- Since assertion (A) is true and reason (R) is false, the correct conclusion is that the assertion is correct but the reason is not.

### Final Answer:
- The assertion (A) is true, and the reason (R) is false.