State one relevant observation for each of the following reactions :
Dil. `H_2SO_4` is added to zinc sulphide.

Explanation

To answer the question regarding the observation when dilute sulfuric acid (H₂SO₄) is added to zinc sulfide (ZnS), we can break down the process step by step:

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in this reaction are zinc sulfide (ZnS) and dilute sulfuric acid (H₂SO₄).

2. **Write the Reaction**: When dilute sulfuric acid is added to zinc sulfide, a chemical reaction occurs. The equation for this reaction can be represented as:
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