White Phosphorus glows in the dark due to:

White Phosphorus glows in the dark due to:

[amp_mcq option1=”amorphous character” option2=”slow oxidation” option3=”high ignition temperature” option4=”good conducting property of electricity” correct=”option2″]

This question was previously asked in
UPSC NDA-2 – 2015
The correct answer is B) slow oxidation.
White phosphorus exhibits phosphorescence, which is a form of chemiluminescence resulting from its slow oxidation when exposed to air. This process releases energy in the form of light, causing it to glow faintly in the dark. This is often referred to as ‘cold light’.
Amorphous character, high ignition temperature (white phosphorus has a very low ignition temperature, around 30°C), and good electrical conductivity are not the reasons for its glow. Its low ignition temperature makes it highly reactive and dangerous.
Exit mobile version