In electrolysis of water,
What would happen if dil. `H_2SO_4` is not added to water.

Explanation

### Step-by-Step Solution:

1. **Understanding Electrolysis**: Electrolysis is a process that uses electricity to break down a compound into its elements or simpler compounds. In the case of water (H₂O), electrolysis separates it into hydrogen (H₂) and oxygen (O₂) gases.

2. **Role of Water in Electrolysis**: Pure water is not a good conductor of electricity. This is because it has very few ions present. For electrolysis to occur, a medium that can conduct electricity is necessary.

3. **Why Add Dilute H₂SO₄?**: Dilute sulfuric acid (H₂SO₄) is often added to water during electrolysis. When H₂SO₄ is dissolved in water, it dissociates into hydrogen ions (H⁺) and sulfate ions (SO₄²⁻). These ions increase the conductivity of the solution.

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