Petrol
Alcohol
Water
Kerosene
Answer is Right!
Answer is Wrong!
Sodium metal is kept under kerosene.
Sodium is a highly reactive metal that reacts violently with water. It also reacts with alcohol and petrol. Kerosene is a non-polar solvent that does not react with sodium. Therefore, sodium metal is kept under kerosene to prevent it from reacting with water or other substances.
Petrol is a flammable liquid that can easily ignite. Alcohol is also a flammable liquid that can easily ignite. Water is a polar solvent that can react with sodium metal. Therefore, petrol, alcohol, and water are not suitable for storing sodium metal.
Kerosene is a non-polar solvent that does not react with sodium metal. It is also a non-flammable liquid. Therefore, kerosene is the most suitable substance for storing sodium metal.