In which of the following, ore does not match with the metal ?

Options

A. Zinc - Calamine
B. Lead - Gypsum
C. Copper - Malachite
D. Aluminium - Bauxite

Explanation

To solve the question of which ore does not match with its corresponding metal, we can follow these steps:

### Step 1: Identify the metals and their corresponding ores
We have the following metals and ores:
- Zinc (Zn) with ore Calamine (ZnCO3)
- Lead (Pb) with ore Gypsum (CuSO4·2H2O)
- Copper (Cu) with ore Malachite (CuCO3·Cu(OH)2)
- Aluminium (Al) with ore Bauxite (Al2O3)

### Step 2: Analyze the relationship between ores and metals
1. **Calamine (ZnCO3)**: This is the ore of Zinc.
2. **Gypsum (CuSO4·2H2O)**: This is not the ore of Lead; it is actually a sulfate mineral and is primarily associated with Calcium (Ca) rather than Lead.
3. **Malachite (CuCO3·Cu(OH)2)**: This is the ore of Copper.
4. **Bauxite (Al2O3)**: This is the ore of Aluminium.

### Step 3: Identify the incorrect match
From the analysis:
- Calamine matches with Zinc (correct).
- Gypsum does not match with Lead (incorrect).
- Malachite matches with Copper (correct).
- Bauxite matches with Aluminium (correct).

### Conclusion
The ore that does not match with its metal is **Gypsum**, which is incorrectly paired with Lead.

### Final Answer
Gypsum does not match with Lead.

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