Identify the gas evolved when
Sulphur is treated with conc. nitric acid.

Explanation

To identify the gas evolved when sulfur is treated with concentrated nitric acid, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Reactants**: We have sulfur (S) and concentrated nitric acid (HNO₃) as the reactants.

2. **Write the Chemical Reaction**: The reaction between sulfur and concentrated nitric acid can be represented by the following balanced chemical equation:
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