German silver is an alloy of

Options

A. Ag and Ni
B. Cu, Zn and Ni
C. Au, Cu and Zn
D. Cu and Zn

Explanation

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about the composition of German silver, specifically which metals it is an alloy of.

2. **Analyzing the Options**: The options provided are:
- A) Silver, Nickel
- B) Copper, Zinc
- C) Nickel, Gold
- D) Copper, Zinc, Nickel

3. **Identifying the Composition of German Silver**: German silver is known to be an alloy that does not contain any actual silver. Instead, it is primarily composed of:
- Copper (25% to 50%)
- Zinc (25% to 35%)
- Nickel (25% to 35%)

4. **Eliminating Incorrect Options**:
- Option A (Silver, Nickel) is incorrect because German silver does not contain silver.
- Option B (Copper, Zinc) is partially correct but does not include nickel, which is also a significant component.
- Option C (Nickel, Gold) is incorrect because it does not contain gold.
- Option D (Copper, Zinc, Nickel) is correct as it includes all the components of German silver.

5. **Conclusion**: The correct answer is option D, which states that German silver is an alloy of Copper, Zinc, and Nickel.

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