2g of ferrous sulphate crystals are heated in a dry boiling tube. (i) List any two observations. (ii) Name the type of chemical reaction taking place. (iii) ‘Write the chemical equation for the reaction.

Explanation

### Step-by-Step Solution

#### (i) Observations
1. **Disappearance of Color**: The green color of ferrous sulfate crystals (FeSO₄) disappears upon heating.
2. **Formation of Reddish-Brown Solid**: A reddish-brown solid is formed during the heating process, which is likely iron(III) oxide (Fe₂O₃).
3. **Smell of Burning Sulfur**: A characteristic smell of burning sulfur is detected, indicating the release of sulfur compounds.

#### (ii) Type of Chemical Reaction
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