Statement-I : All the ores are mineral
Statement-II : Most of the ores contains metals in combined state

Options

A. If both assetion 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 assertion is INCORRECT but reason is CORRECT

Answer

To analyze the statements provided in the question, we can break down the reasoning step by step:

### Step 1: Understanding Statement-I
- **Statement-I**: "All the ores are minerals."
- **Explanation**: Ores are naturally occurring solid materials from which a metal or valuable mineral can be extracted profitably. All ores are indeed classified as minerals because they are naturally occurring substances with a definite chemical composition and structure.

### Step 2: Understanding Statement-II
- **Statement-II**: "Most of the ores contain metals in combined state."
- **Explanation**: Most ores are found in the form of compounds, such as oxides, sulfides, carbonates, and silicates. This means that the metals within these ores are not found in their elemental (free) state but rather combined with other elements.

### Step 3: Evaluating the Truth of Each Statement
- **Truth of Statement-I**: True. All ores are minerals.
- **Truth of Statement-II**: True. Most ores do contain metals in a combined state.

### Step 4: Analyzing the Relationship Between the Statements
- While both statements are true, the reason (Statement-II) does not serve as a correct explanation for the assertion (Statement-I). The fact that most ores contain metals in a combined state does not inherently explain why all ores are classified as minerals.

### Conclusion
- Both statements are correct, but the reason is not the correct explanation of the assertion. Therefore, the correct answer is:
- **Option 2**: Both assertion and reason are correct but the reason is not the correct explanation of the assertion.