A: Roasting process is involved in the metallurgy of Cu from Malachite ore.
R: Roasting is the process of heating the ore in absence of air.

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 explanation of the assertion, then mark (2)
C. If Assertion is true statement but Reason is false, then mark
D. If both Assertion and Reason are false statements, then mark (4)

Answer

To solve the question, we need to analyze both the assertion (A) and the reason (R) provided in the statement.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that "the roasting process is involved in the metallurgy of Cu from Malachite ore."
- Malachite is a copper ore with the chemical formula CuCO3·Cu(OH)2.
- Roasting is typically used for sulfide ores to remove sulfur impurities by heating in the presence of air.

**Conclusion**: The assertion is incorrect because malachite does not contain sulfur and is not processed by roasting.

2. **Understanding the Reason (R)**:
- The reason states that "roasting is the process of heating the ore in absence of air."
- This statement is also incorrect. Roasting involves heating the ore in the presence of air (or oxygen) to facilitate the removal of sulfur impurities.

**Conclusion**: The reason is incorrect because it misdefines roasting.

3. **Final Evaluation**:
- Since both the assertion and the reason are false, we conclude that the correct answer is that both statements are false.

### Final Answer:
Both the assertion (A) and the reason (R) are false.