What do you observe when : Chlorine water is exposed to sunlight.

Explanation

### Step-by-Step Solution:

1. **Understanding Chlorine Water**: Chlorine water is a solution of chlorine gas (Cl₂) dissolved in water. It has a characteristic yellow color and a distinct odor.

2. **Exposure to Sunlight**: When chlorine water is exposed to sunlight, a photochemical reaction occurs. The energy from sunlight initiates the breakdown of chlorine water.

3. **Formation of Hypochlorous Acid**: In the presence of sunlight, chlorine reacts with water (H₂O) to form hypochlorous acid (HClO) as an intermediate product. The reaction can be represented as:
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