White phosphorus is kept under

Options

A. water
B. Kerosene oil
C. ethanol
D. conc. `HNO_(3)`

Answer

1

Explanation

The pure from is white but attains yellow colour on long standing due to the formation of a thin film of the red variety on the surface. If has characteristic garlic smell and is very poisonous in nature. Its vapours are also injurious. Persons working with phosphrous develops a disease in which the jaw bones decay,this desease is known as Phossy jaw. when exposed to the air ,white phosphorous emits a greenish glow which is visible in the dark in the dark, a phenomenon known as Phosphrous. The effect can be used to detect the presence of white phosphorus. Because of its reactivity with oxygen ,white phospherous is stored under water ,in which it is insoluble.
Bone ash glows in the dark because it ocntain white `P` which undergoes show combustiob in constact with air ,producing light. (Chemiluminescence).