Phosphorite is 

The formula of meta phosphoric acid is 

Phosphorus reacts with sodium hydroxide to give

Phossy jaw is caused due to the presence of 

The allotropic form of phosphorus used as rat poison is 

Phosphorus burns in air or oxygen to give a dense white fumes of 

The compound of phosphorus used as drying agent is

Red phosphorus on heating nitric acid gives.

The melting point of phosphorus is 

Phosphoric acid is