White phosphorus glows in the dark due to slow oxidation. When white phosphorus is exposed to oxygen in the air, it undergoes a chemical reaction known as oxidation. This reaction occurs slowly at room temperature and causes white phosphorus to emit a faint glow, giving it the characteristic property of phosphorescence.

Option 1 - Amorphous character: The amorphous character refers to the lack of a regular crystalline structure. However, this property does not directly contribute to the glow of white phosphorus in the dark.

Option 2 - Slow oxidation: This is the correct answer. White phosphorus undergoes slow oxidation in the presence of oxygen, causing it to emit a glow in the dark.

Option 3 - High ignition temperature: This refers to the temperature at which white phosphorus can ignite or begin to burn. While it is true that white phosphorus has a high ignition temperature, this property is not directly related to its glowing in the dark.

Option 4 - Good conducting property of electricity: The good conducting property of electricity is not relevant to the glow of white phosphorus in the dark.

In conclusion, white phosphorus glows in the dark due to slow oxidation, not due to its amorphous character, high