White phosphorous glows in the dark due to

Options

A. amporphous character
B. slow oxidation
C. high ignition temperature
D. good conducting property of electricity

Explanation

**Step-by-Step Solution:**

1. **Understanding White Phosphorus:**
White phosphorus (P4) is a highly reactive allotrope of phosphorus. It is known for its ability to glow in the dark.

2. **Exposure to Air:**
When white phosphorus is exposed to air, it reacts with oxygen. This reaction is an oxidation process where phosphorus combines with oxygen to form phosphorus oxides.

3. **Oxidation Reaction:**
The oxidation of phosphorus is a slow process. During this reaction, energy is released in the form of heat and light. This is a characteristic of combustion reactions, even though the process is not rapid.

4. **Light Emission:**
The light emitted during the oxidation of white phosphorus is what causes it to glow in the dark. This phenomenon is known as phosphorescence.

5. **Conclusion:**
Therefore, the reason white phosphorus glows in the dark is due to the slow oxidation process that releases light energy, which is a result of its combustion in the presence of oxygen.

**Final Answer:**
White phosphorus glows in the dark due to phosphorescence, which occurs as a result of its slow oxidation in the presence of air, releasing light energy.

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