Which ore contains both iron and copper?

Options

A. Cuprite
B. Chalcocite
C. Chalcopyrite
D. Malachite

Explanation

To determine which ore contains both iron and copper, we can analyze the given options by looking at their chemical formulas. Here’s a step-by-step solution:

### Step 1: List the given options and their chemical formulas.
- **Cuprite**: Cu2O
- **Chalcocite**: Cu2S
- **Chalcopyrite**: CuFeS2
- **Malachite**: Cu2CO3(OH)2

### Step 2: Analyze each ore for the presence of iron (Fe) and copper (Cu).
1. **Cuprite (Cu2O)**:
- Contains: Copper (Cu)
- Does not contain: Iron (Fe)
- Conclusion: This ore does not satisfy the requirement.

2. **Chalcocite (Cu2S)**:
- Contains: Copper (Cu)
- Does not contain: Iron (Fe)
- Conclusion: This ore does not satisfy the requirement.

3. **Chalcopyrite (CuFeS2)**:
- Contains: Copper (Cu) and Iron (Fe)
- Conclusion: This ore satisfies the requirement as it contains both elements.

4. **Malachite (Cu2CO3(OH)2)**:
- Contains: Copper (Cu)
- Does not contain: Iron (Fe)
- Conclusion: This ore does not satisfy the requirement.

### Step 3: Identify the correct answer.
From the analysis, we find that **Chalcopyrite (CuFeS2)** is the only ore that contains both iron and copper.

### Final Answer:
The ore that contains both iron and copper is **Chalcopyrite (CuFeS2)**.

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