Which one of the following is an oxide ore ?

Options

A. Malachite
B. Copper glance
C. Haematite
D. Zinc blende

Answer

To determine which of the following is an oxide ore, we need to analyze each option based on its chemical formula and classification as an ore. Here’s the step-by-step solution:

### Step 1: Identify the ores and their formulas
We need to look at the ores mentioned in the options and identify their chemical formulas.

### Step 2: Analyze each ore
1. **Malachite**:
- Formula: Cu2(CO3)(OH)2
- Classification: This is a basic copper carbonate, not an oxide ore.

2. **Copper Glance (Chalcopyrite)**:
- Formula: Cu2S
- Classification: This is a sulfide ore of copper, not an oxide ore.

3. **Hematite**:
- Formula: Fe2O3
- Classification: This is an iron oxide, and hence it is classified as an oxide ore.

4. **Zinc Blend (Sphalerite)**:
- Formula: ZnS
- Classification: This is a sulfide ore of zinc, not an oxide ore.

### Step 3: Conclusion
From the analysis, we see that only **Hematite (Fe2O3)** is classified as an oxide ore. Therefore, the correct answer to the question is Hematite.

### Final Answer:
Hematite is the oxide ore.

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