What do you observe when Ammonia gas is passed through Nessler.s reagent.

Explanation

### Step-by-Step Solution:

1. **Understanding Nessler's Reagent**:
- Nessler's reagent is a chemical solution composed of potassium mercuric iodide (K2HgI4). It is typically used to detect the presence of ammonia in a solution.

2. **Reaction with Ammonia**:
- When ammonia gas (NH3) is passed through Nessler's reagent, a chemical reaction occurs. The ammonia reacts with the components of Nessler's reagent.

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