Ferrous sulphate on heating gives:

Options

A. `SO_(2) and SO_(3)`
B. `SO_(2)` Only
C. `SO_(3)` Only
D. `H_(2)S` Only

Answer

To solve the question "Ferrous sulphate on heating gives:", we will follow these steps:

### Step 1: Identify the Composition of Ferrous Sulphate
Ferrous sulphate is represented as FeSO₄. It is a salt composed of ferrous ions (Fe²⁺) and sulphate ions (SO₄²⁻).

**Hint:** Remember that ferrous sulphate is also known as iron(II) sulphate.

### Step 2: Understand the Heating Process
When ferrous sulphate (FeSO₄) is heated, it undergoes a thermal decomposition reaction. Initially, it loses water molecules, especially if it is in its hydrated form (FeSO₄·7H₂O).

**Hint:** Consider the difference between hydrated and anhydrous forms of a compound.

### Step 3: Formation of Anhydrous Ferrous Sulphate
Upon heating, ferrous sulphate crystals lose their water of crystallization and form anhydrous ferrous sulphate (FeSO₄). This process changes the color of the compound from light green to white.

**Hint:** The color change indicates a change in the physical state of the compound.

### Step 4: Further Heating of Anhydrous Ferrous Sulphate
With continued heating, anhydrous ferrous sulphate decomposes into ferric oxide (Fe₂O₃), sulfur dioxide (SO₂), and sulfur trioxide (SO₃).

**Hint:** Look for the products formed during the decomposition reaction.

### Step 5: Write the Balanced Chemical Equation
The balanced chemical equation for the decomposition of anhydrous ferrous sulphate can be represented as:
\[ 2 \text{FeSO}_4 \rightarrow \text{Fe}_2\text{O}_3 + \text{SO}_2 + \text{SO}_3 \]

**Hint:** Ensure that the number of atoms of each element is balanced on both sides of the equation.

### Final Answer
Thus, when ferrous sulphate is heated, it gives ferric oxide (Fe₂O₃), sulfur dioxide (SO₂), and sulfur trioxide (SO₃).

**Correct Option:** The first option is correct.