Sodium is stored in water.

The given statement is False.

Sodium metal is a very reactive metal. When It gets exposed to air or moisture, it reacts vigorously. When sodium metal is dropped in water, it reacts and releases a high amount of heat, It can catch fire. Therefore, sodium is not kept underwater. It is kept under inert hydrocarbon solvents like kerosene oil or petroleum.

So, the correct statement would be, Sodium is stored in kerosene.