The following metal-ore combination is correct

Options

A. Pb-Galena
B. Fe-siderite
C. AI-Bauxite
D. Mn-Magnesite

Explanation

To determine the correct metal-ore combinations, we will analyze each given pair of metals and their corresponding ores.

### Step-by-Step Solution:

1. **Understanding Ores**:
- An ore is a naturally occurring solid material from which a metal can be extracted profitably.
- All ores are minerals, but not all minerals are ores.

2. **Analyzing Each Metal-Ore Pair**:
- **Galena (Lead)**:
- Formula: PbS
- This is indeed the ore of lead.
- **Conclusion**: Correct pair.

- **Siderite (Iron)**:
- Formula: FeCO3
- This is the ore of iron.
- **Conclusion**: Correct pair.

- **Bauxite (Aluminum)**:
- Formula: Al2O3·2H2O
- This is the ore of aluminum.
- **Conclusion**: Correct pair.

- **Magnesite (Manganese)**:
- Formula: MgCO3
- This is the ore of magnesium, not manganese.
- **Conclusion**: Incorrect pair.

3. **Final Assessment**:
- The correct metal-ore combinations are:
- Galena (PbS) - Lead
- Siderite (FeCO3) - Iron
- Bauxite (Al2O3·2H2O) - Aluminum
- The incorrect pair is Magnesite (MgCO3) for Manganese.

### Final Answer:
The correct metal-ore combinations are:
1. Galena - Lead (PbS)
2. Siderite - Iron (FeCO3)
3. Bauxite - Aluminum (Al2O3·2H2O)
4. Magnesite - Magnesium (MgCO3) (Incorrect for Manganese)