What will be the colour of precipitate obtained when NaOH solution is added to iron (II) sulphate solution ?

Options

A. Red
B. Green
C. White
D. Colourless

Explanation

To determine the color of the precipitate obtained when sodium hydroxide (NaOH) solution is added to iron (II) sulfate (FeSO4) solution, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- We have sodium hydroxide (NaOH) and iron (II) sulfate (FeSO4).

2. **Understand the Reaction**:
- When NaOH is added to FeSO4, a double displacement reaction occurs. The hydroxide ions (OH⁻) from NaOH react with the iron (II) ions (Fe²⁺) from FeSO4 to form ferrous hydroxide (Fe(OH)₂).

3. **Write the Chemical Equation**:
- The balanced chemical equation for the reaction is:
\[ FeSO_4 + 2NaOH \rightarrow Fe(OH)_2 + Na_2SO_4 \]
- Here, ferrous hydroxide (Fe(OH)₂) is formed as a precipitate.

4. **Determine the Color of the Precipitate**:
- Ferrous hydroxide (Fe(OH)₂) is known to have a dirty green color.

5. **Conclusion**:
- Therefore, the color of the precipitate obtained when NaOH is added to iron (II) sulfate solution is green.

### Final Answer:
The color of the precipitate is **green**.