Bronze is an example of

Options

A. an element
B. a compound of copper and zinc
C. a mixture of copper and zinc
D. a mixture of copper and tin.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks what bronze is an example of, providing four options related to its composition.

2. **Identifying Bronze**: Recognize that bronze is known as an alloy. An alloy is a combination of two or more elements, where at least one of them is a metal.

3. **Components of Bronze**: Determine the specific metals that make up bronze. Bronze is primarily composed of copper and tin.

4. **Analyzing the Options**:
- Option A: "an element" - This is incorrect because bronze is not a single element.
- Option B: "a compound of copper and zinc" - This is incorrect as bronze does not primarily consist of zinc.
- Option C: "a mixture of copper and zinc" - This is incorrect because, while bronze contains metals, it specifically consists of copper and tin.
- Option D: "a mixture of copper and tin" - This is the correct answer as bronze is indeed a mixture of these two metals.

5. **Conclusion**: Based on the analysis, the correct answer is option D, which states that bronze is a mixture of copper and tin.

**Final Answer**: D - a mixture of copper and tin.

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