Question

liquid Phosphorus is generally stored in

Answer 1

liquid phosphorous stored in water because it is very reactive non metal

Answer 2

The liquid Phosphorus is generally stored in water.

It is because phosphorus is very reactive as well as form oxides while coming in directly contact with air.

It is significant to know that the liquid phosphorous is not reacting with water.  

It is the main reason why liquid phosphorous is actually stored in the water content for saving from air.