Gun metal contains

Options

A. Cu, Sn, Zn
B. Cu, Ni
C. Cu, Ni, Fe
D. Cu,Sn, Pb

Answer

**Step-by-Step Solution:**

1. **Understanding Gun Metal**: Gun metal is a type of bronze, which is an alloy primarily made of copper.

2. **Composition of Gun Metal**: The typical composition of gun metal is approximately 88% copper, 10% tin, and 2% zinc.

3. **Identifying the Options**: The options provided are:
- CuSnZn (Copper, Tin, Zinc)
- CuNi (Copper, Nickel)
- CuNiFe (Copper, Nickel, Iron)
- CuSnPb (Copper, Tin, Lead)

4. **Analyzing the Options**:
- The first option, CuSnZn, matches the composition of gun metal as it contains copper, tin, and zinc.
- The other options (CuNi, CuNiFe, CuSnPb) do not contain the correct combination of elements that define gun metal.

5. **Conclusion**: Therefore, the correct answer is that gun metal contains CuSnZn (Copper, Tin, and Zinc).

**Final Answer**: Gun metal contains CuSnZn (Copper, Tin, Zinc).

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