What happens when:
White phosporus is heated with caustic soda.

Explanation

To solve the question of what happens when white phosphorus is heated with caustic soda, we can follow these steps:

### Step 1: Identify the Reactants
We start with two reactants:
- White phosphorus, which is represented as \( P_4 \).
- Caustic soda, which is sodium hydroxide, represented as \( NaOH \).

### Step 2: Write the Reaction
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