Which of the following is ferrous alloy?

Options

A. German Silver
B. Gun metal
C. Nichrome
D. Devarda's alloy

Answer

To determine which of the following is a ferrous alloy, we need to identify which alloy contains iron as one of its components. Let's analyze each option provided:

1. **German Silver**: This is an alloy composed of copper, nickel, and zinc. It does not contain iron, so it is not a ferrous alloy.

2. **Gun Metal**: This alloy consists of copper, zinc, and tin. Similar to German Silver, it does not contain iron, making it also not a ferrous alloy.

3. **Nichrome**: This alloy is made up of nickel, chromium, and iron. Since it contains iron, it qualifies as a ferrous alloy.

4. **Duralumin**: This is an alloy of copper, zinc, and aluminum. Like the previous two, it does not contain iron, so it is not a ferrous alloy.

After analyzing all the options, we can conclude that the only ferrous alloy among the given choices is **Nichrome**.

### Final Answer:
**Nichrome** is the ferrous alloy.

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