Give one example of a reaction in which dihydrogen acts as a reducing agent and oxidising agent.

Explanation

To solve the question of providing an example of a reaction in which dihydrogen acts as both a reducing agent and an oxidizing agent, we can break down the solution into clear steps:

### Step-by-Step Solution:

1. **Understanding Reducing and Oxidizing Agents**:
- A reducing agent is a substance that donates electrons to another substance, reducing it while itself getting oxidized.
- An oxidizing agent is a substance that accepts electrons from another substance, oxidizing it while itself getting reduced.

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