Give one reaction each to show that water can act as
(i) an acid,
(ii) abase,
(iii) an oxidizing agent,

Explanation

To demonstrate that water can act as an acid, a base, and an oxidizing agent, we can provide one reaction for each case as follows:

### (i) Water as an Acid:
When water acts as an acid, it donates a proton (H⁺) to a base. A common reaction is with ammonia (NH₃):

**Reaction:**
\[ \text{NH}_3 + \text{H}_2\text{O} \rightarrow \text{NH}_4^+ + \text{OH}^- \]

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