A: Metallurgy of Ag from Argentite is known as hydro-metallurgy
R: Argentile is `Ag_2S`.

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) given in the statement.

### Step-by-Step Solution:

1. **Understanding the Assertion (A)**:
- The assertion states that the metallurgy of silver (Ag) from argentite is known as hydrometallurgy.
- Hydrometallurgy is a method used for extracting metals from their ores using aqueous solutions.

2. **Understanding the Reason (R)**:
- The reason states that argentite is represented as Ag₂S.
- Argentite is indeed a silver sulfide mineral, and its chemical formula is Ag₂S.

3. **Linking Assertion and Reason**:
- Since argentite (Ag₂S) is a source of silver, the extraction of silver from argentite can be performed using hydrometallurgy.
- The assertion is correct because hydrometallurgy is a suitable method for extracting silver from its sulfide ore.

4. **Conclusion**:
- Both the assertion (A) and the reason (R) are correct. The assertion correctly identifies the method of extraction for silver from argentite, and the reason accurately describes the chemical composition of argentite.

### Final Answer:
Both A and R are correct, and R correctly explains A.

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