A mixture of iron and sulphur is taken and heated strongly. Explain what happens if a magnet is brought near it after heating.

Explanation

### Step-by-Step Solution:

1. **Understanding the Mixture**: Initially, we have a mixture of iron and sulphur. Iron is a magnetic material, while sulphur is not magnetic.

2. **Heating the Mixture**: When we heat the mixture of iron and sulphur strongly, a chemical reaction occurs. The heat causes the iron and sulphur to react and form a new compound.

3. **Formation of Ferrous Sulphide**: The new compound formed from this reaction is called ferrous sulphide (FeS). This compound has different properties compared to the original elements (iron and sulphur).

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