Assertion . Ionic compounds tend to be non-volatile.
Reason . Ionic compounds are solid

Options

A. If both assertion and reason are correct, and reason is the correct explanation of the assertion.
B. If both assertion and reason are correct , but reason is not the correct explanation of the assertion.
C. If assertion is correct, but reason is incorrect .
D. If both assertion and reason are incorrect.

Explanation

To analyze the assertion and reason provided in the question, we can break down the explanation into a step-by-step solution.

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Ionic compounds tend to be non-volatile."
- Non-volatile means that a substance does not easily vaporize or convert into a gas at normal temperatures.

2. **Understanding the Reason**:
- The reason given is that "Ionic compounds are solid."
- Ionic compounds are indeed typically found in solid form at room temperature.

3. **Explaining Ionic Compounds**:
- Ionic compounds consist of cations (positively charged ions) and anions (negatively charged ions) held together by strong electrostatic forces of attraction, known as ionic bonds.

4. **Properties of Ionic Compounds**:
- Due to the strong ionic bonds, ionic compounds have high melting and boiling points. This means that a significant amount of energy is required to break these bonds and convert the solid into a liquid or gas.

5. **Linking Assertion and Reason**:
- The assertion is true because ionic compounds are indeed non-volatile due to their high melting and boiling points.
- The reason is also true, as ionic compounds are solid at room temperature.

6. **Evaluating the Relationship**:
- While both the assertion and reason are true, the reason does not adequately explain why ionic compounds are non-volatile. The non-volatility is primarily due to the strong ionic bonds and the high energy required to overcome these forces, rather than just being solid.

7. **Conclusion**:
- Therefore, the correct evaluation is that the assertion is true, the reason is true, but the reason is not the correct explanation for the assertion.

### Final Answer:
- The assertion is true, the reason is true, but the reason is not the correct explanation for the assertion.

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