..............is formed when `NH_(3)` is passed through a solution of calcium hypochlorite.

Explanation

To solve the question of what is formed when ammonia (NH₃) is passed through a solution of calcium hypochlorite (Ca(OCl)₂), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**:
- The reactants in this reaction are ammonia (NH₃) and calcium hypochlorite (Ca(OCl)₂), which is commonly known as bleaching powder.

2. **Understand the Reaction**:
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