Give the chemical tests between the following pairs:
Iron (II) sulphate and Iron (III) sulphate.

Explanation

To differentiate between Iron (II) sulfate (FeSO₄) and Iron (III) sulfate (Fe₂(SO₄)₃), we can perform a chemical test using ammonium hydroxide (NH₄OH). Here’s a step-by-step solution:

### Step 1: Prepare the Solutions
- Take a small amount of Iron (II) sulfate (FeSO₄) in a test tube.
- In another test tube, take a small amount of Iron (III) sulfate (Fe₂(SO₄)₃).

### Step 2: Add Ammonium Hydroxide
- To the Iron (II) sulfate solution, add a few drops of ammonium hydroxide (NH₄OH).
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