Give one example each of zero and first order reaction.

Explanation

### Step-by-Step Solution

**Step 1: Understanding Zero Order Reactions**
A zero order reaction is one where the rate of reaction is independent of the concentration of the reactants. This means that the rate remains constant over time.

**Example of Zero Order Reaction:**
The reaction between hydrogen gas (H₂) and chlorine gas (Cl₂) to form hydrogen chloride (HCl) in the presence of light can be considered a zero order reaction. The reaction can be represented as:
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