What is a redox reaction give one example

Explanation

### Step-by-Step Solution:

1. **Definition of Redox Reaction**:
A redox reaction, short for reduction-oxidation reaction, is a type of chemical reaction that involves the transfer of electrons between two species. In these reactions, one species undergoes oxidation (loses electrons) while another undergoes reduction (gains electrons).

2. **Understanding Oxidation and Reduction**:
- **Oxidation**: This is the process where a substance loses electrons. When a substance is oxidized, its oxidation state increases.
- **Reduction**: This is the process where a substance gains electrons. When a substance is reduced, its oxidation state decreases.
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