Name the gas evolved when the following mixture is heated :
Calcium hydroxide and ammonium chloride.

Explanation

To determine the gas evolved when a mixture of calcium hydroxide and ammonium chloride is heated, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this case are calcium hydroxide (Ca(OH)₂) and ammonium chloride (NH₄Cl).

2. **Write the Chemical Reaction**: When these two compounds are heated together, they undergo a chemical reaction. The balanced equation for this reaction is:
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