Question

White Phosphorus glows in the dark due to:
1. amorphous character
2. slow oxidation
3. high ignition temperature
4. good conducting property of electricity
5. None of the above/ More than one of the above.

Answer 1

Correct Answer - Option 2 : slow oxidation

The correct answer is slow oxidation.

White Phosphorus properties

• Translucent in appearance like white waxy solid.
• Poisonous in nature.
• Less stable and more reactive.
• Does not dissolve in water.
• When mixed with Carbon Disulphide, it dissolves.
• Glows in the dark (chemiluminescence).
• White Phosphorus emits a faint glow when exposed to Oxygen because of a chemical reaction taking place on its surface (Slow oxidation of white phosphorus), only if the darkened room has oxygen in it. Hence option 2 is correct.