White phosphorus when boiled with strong solution of caustic soda prduces :

Options

A. sodium phosphide
B. sodium phosphate
C. sodium hypophosphite
D. red phosphorus

Explanation

To solve the question, "White phosphorus when boiled with a strong solution of caustic soda produces:", we will follow these steps:

### Step-by-Step Solution:

1. **Identify White Phosphorus**:
- White phosphorus is represented by the molecular formula \( P_4 \).

2. **Identify Caustic Soda**:
- Caustic soda is sodium hydroxide, represented as \( NaOH \).

3. **Set Up the Reaction**:
- When white phosphorus \( P_4 \) is boiled with a strong solution of sodium hydroxide \( NaOH \) and water \( H_2O \), a chemical reaction occurs.

4. **Write the Reaction**:
- The reaction can be represented as:
\[ P_4 + 4 NaOH + 2 H_2O \rightarrow 2 PH_3 + 2 NaH_2PO_2 \]

5. **Identify the Products**:
- The products of this reaction are:
- Phosphine (\( PH_3 \))
- Sodium hypophosphite (\( NaH_2PO_2 \))

6. **Conclusion**:
- Therefore, when white phosphorus is boiled with a strong solution of caustic soda, it produces phosphine and sodium hypophosphite.

7. **Select the Correct Option**:
- Among the given options, the correct answer is sodium hypophosphite.

### Final Answer:
White phosphorus when boiled with a strong solution of caustic soda produces phosphine and sodium hypophosphite.

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