(g) An ore of tin containing `FeCrO_(4)` is concentrated by ____.

Explanation

### Step-by-Step Solution:

1. **Identify the Ore**: The question mentions an ore of tin that contains `FeCrO4`. This is a key component that we need to focus on.

2. **Understand the Composition**: `FeCrO4` is known as chromite and contains iron (Fe) and chromium (Cr). It is important to note that `FeCrO4` has ferromagnetic properties.

3. **Determine the Concentration Method**: To concentrate ores, different methods are used based on their physical and chemical properties. In this case, since `FeCrO4` is ferromagnetic, we can use magnetic separation.

4. **Explain Magnetic Separation**: Magnetic separation is a process that utilizes the differences in magnetic properties of the components in the ore. Ferromagnetic materials (like `FeCrO4`) are attracted to magnets, while non-magnetic impurities can be separated out.

5. **Conclusion**: Therefore, the ore of tin containing `FeCrO4` is concentrated by **magnetic separation**.

### Final Answer:
An ore of tin containing `FeCrO4` is concentrated by **magnetic separation**.

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