Assertion (A): Usually the sulphide ore is converted to oxide before reduction.
Reason (R): Reduction of oxides occurs easier.

Options

A. Both A and R are true and R is the correct explanation of A.
B. Both A and R are true but R is NOT the correct explanation of A
C. A is true but R is false
D. A is false and R is true.

Explanation

### Step-by-Step Solution:

1. **Understanding the Assertion**:
- The assertion states that "Usually the sulphide ore is converted to oxide before reduction." This is a common practice in metallurgy, particularly for metals like zinc, lead, and copper.

2. **Understanding the Reason**:
- The reason given is "Reduction of oxides occurs easier." This is true because the reduction of metal oxides is generally more straightforward compared to the reduction of metal sulfides.

3. **Example of Sulphide to Oxide Conversion**:
- For instance, zinc sulfide (ZnS) is often converted to zinc oxide (ZnO) before the reduction process. The conversion typically involves roasting the sulfide ore in the presence of oxygen, which results in the formation of the oxide.

4. **Reduction Process**:
- Once the ore is in the oxide form, it can be reduced to the metal using carbon or other reducing agents. For zinc oxide, the reduction can be achieved by heating it with carbon, which produces zinc metal and carbon dioxide.

5. **Conclusion**:
- Both the assertion and the reason are true, and the reason correctly explains the assertion. Therefore, the correct conclusion is that both statements are true and the reason is a correct explanation of the assertion.

### Final Answer:
Both Assertion (A) and Reason (R) are true, and R is the correct explanation of A.

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