Question

Phosphorus has three allotropic forms — (i) white phosphorus (ii) red phosphorus and

Answer 1

(iii) Black phosphorus

Answer 2

Answer:

BLACK PHOSPHORUS

✪Allotrope of phosphorus ✪

Phosphorus has many allotropes. But there are three main allotopic form of phosphorus is

White phosphorus

Red phosphorus

Black phosphorus

➽ White Phosphorus :

It is a waxy and translucent solid.

It is very delicate and need proper handling.

It is insoluble in water.

It catches fire suddenly in the air at around 35°C

➽ Red Phosphorus :

It is iron-grey in colour

It is a radiant and bright crystalline solid.

It doesn't dissolved in water.

We can find it in state of a polymeric solid.

➽ Black Phosphorus :

It is most stable allotrope of phosphorus.

It has a layered structure.

It found in two forms alpha black phosphorus and beta black phosphorus.

Beta black conducts electricity while beta black doesn't.