Statement-I : `CuFeS_(2)` is concentrated by froath floatation method
Statement-II : `CuFeS_(2)` is main ore of copper.

Options

A. Statement-I is True, Statement-II is True, Statement-II is a correct explanation for Statement-I
B. Statement-I is True, Statement-II is True, Statement-II is
NOT a correct explanation for Statement-I
C. Statement-I is True, Statement-II is False.
D. Statement-I is False, Statement-II is True.

Answer

To solve the question, we need to analyze both statements provided:

**Statement-I:** CuFeS₂ is concentrated by froth flotation method.
**Statement-II:** CuFeS₂ is the main ore of copper.

### Step-by-Step Solution:

1. **Understanding Statement-II:**
- CuFeS₂ is known as copper pyrite or chalcopyrite.
- It is indeed the main ore of copper, which means it is a valuable mineral from which copper can be economically extracted.
- Therefore, Statement-II is **True**.

2. **Understanding Statement-I:**
- The froth flotation method is a process used to separate hydrophobic materials from hydrophilic ones.
- This method is particularly effective for the concentration of sulfide ores, including CuFeS₂.
- Since CuFeS₂ is a sulfide ore, it can be concentrated using the froth flotation method.
- Therefore, Statement-I is also **True**.

3. **Analyzing the Relationship Between the Statements:**
- Both statements are true, but they are not directly related to each other in a cause-and-effect manner.
- Statement-I does not provide a reason for Statement-II; it simply states a fact about the method used for concentration.
- Hence, while both statements are true, Statement-I does not serve as a correct explanation for Statement-II.

### Conclusion:
- Both Statement-I and Statement-II are true, but Statement-I is not the correct explanation for Statement-II.

### Final Answer:
- Statement-I: True
- Statement-II: True
- Statement-I is not the correct explanation for Statement-II.

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