Given reasons for each of the following.
Phosphorus is stored inside water.

Explanation

**Step-by-Step Text Solution:**

1. **Understanding Phosphorus**: Phosphorus is a non-metal that is known for its high reactivity. It can exist in several allotropes, with white phosphorus being the most reactive.

2. **Reactivity with Air**: When phosphorus is exposed to air, it reacts vigorously with oxygen. This reaction can lead to the formation of phosphorus pentoxide (P2O5) and can even result in combustion, especially in the case of white phosphorus.

3. **Need for Storage**: Due to its high reactivity, if phosphorus is left exposed to air, it can ignite spontaneously or react with moisture in the air, leading to hazardous situations.

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