Name the evolved gases in following cases : Addition of concentrated sulphuric acid to potassium chloride

Explanation

To determine the evolved gases when concentrated sulfuric acid is added to potassium chloride, we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this case are concentrated sulfuric acid (H₂SO₄) and potassium chloride (KCl).

2. **Write the Chemical Reaction**: When concentrated sulfuric acid reacts with potassium chloride, the reaction can be represented as:
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