2 g ferrous sulphate crystals are heated in a dry boiling tube.
Name the type of chemical reaction taking place.

Explanation

To determine the type of chemical reaction that occurs when 2 g of ferrous sulfate crystals are heated in a dry boiling tube, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Compound**: The compound in question is ferrous sulfate, which has the chemical formula FeSO₄. It is often found in the hydrated form as FeSO₄·7H₂O, meaning it contains seven molecules of water of crystallization.

2. **Heating the Compound**: When ferrous sulfate crystals are heated, the first change that occurs is the loss of water molecules. This is because the heat causes the water of crystallization to evaporate.

...