Question

Give reasons why
1. White phoshorous glow in dark
2. Black phosphorous do not oxidise in air

Answer 1

White phosphorous undergoes slow oxidation in air, and this chemical reaction results in to a greenish glow which is visible in the dark. This is due to a phenomenon called as Chemiluminescence​.

Black phosphorus is the most stable form.it has layered structure and is highly polymerised.