German silver is an alloy of copper and:

Options

A. `Zn+Ni`
B. `Al+Ag`
C. `Zn+Ag`
D. `Sn+Zn`

Answer

To solve the question regarding the composition of German silver, we will break down the information step by step.

### Step-by-Step Solution:

1. **Identify the Alloy**: The question states that we need to identify the components of German silver, which is an alloy.

2. **Research the Composition**: German silver is known to be an alloy primarily composed of three metals: copper, zinc, and nickel.

3. **Determine the Percentages**:
- Copper (Cu): 56%
- Zinc (Zn): 24%
- Nickel (Ni): 20%

4. **Conclude the Components**: Based on the above information, we conclude that German silver is an alloy of:
- Copper (Cu)
- Zinc (Zn)
- Nickel (Ni)

5. **Select the Correct Answer**: Since the question asks for the components of German silver, the correct answer is that it is an alloy of copper and zinc, and nickel.

### Final Answer:
German silver is an alloy of copper, zinc, and nickel.

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