Sodium metal is usually kept under which of the following liquids?

Options :
  1. water
  2. alcohol
  3. petrol
  4. kerosene
Answer and Explanation :-

Answer: Option 4


Sodium is a highly reactive metal and is a member of the alkali metals. Sodium is one of the most abundant element in the Earth's crust but not as a free metal, since it quickly oxidizes in air and is violently reactive with water. So to use Sodium metal for commercial purposes it must be stored in an anhydrous inert medium and a liquid hydrocarbon like Kerosene fulfills that purpose.

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