It is important that the oil for storage of these metals be very water-resistant, and that it not have a high vapour pressure. It must not react with the metal. It is also nice if a storage oil is relatively non viscous and non-sticky so that the oil can be easily removed when the metal is needed. Being cheap also helps. Kerosene is the oil that best meets these requirements.
as it reacts with the oxygen in the air
Sodium
Metals such as potassium and sodium react so vigorously that they catch fire if kept in open.Hence,to protect them and to prevent their burning they are stored in kerosene as moisture cannot enter in it.
Sodium metal IS stored in petrol, or more commonly is kerosene or oil.
Sodium react vigorously with air, to prevents it's harmfulness it is to be stored under kerosene.
as it reacts with the oxygen in the air
Sodium
Metals such as potassium and sodium react so vigorously that they catch fire if kept in open.Hence,to protect them and to prevent their burning they are stored in kerosene as moisture cannot enter in it.
because its stupid
Sodium metal IS stored in petrol, or more commonly is kerosene or oil.
Sodium react vigorously with air, to prevents it's harmfulness it is to be stored under kerosene.
Because in air potassium is easy oxidized.
Because in air potassium is easy oxidized.
when exposed to air or moisture, sodium will catch fire. to prevent that, sodium is stored in kerosene oil
Potassium is stored in not aqueous or non-protic solvents such as kerosene or hexane
because they react very vigorously with oxygen and moisture and sometimes also cause fire
sodium and potassium are kept under kerosene surface to protect them from rust since the are very active elements and react with O as soon as being exposed to it.