Why is sodium kept immersed in kerosene oil?

Answer

Sodium is a very reactive metal . It lies near the top of the reactivity series and hence it r eacts vigorously with air if kept in open. It catches fire if kept in the open. 

Hence, to protect the metal and to prevent accidental fires , they are stored in kerosene oil.  

Sodium, Potassium and Lithium metals immersed in kerosene oil  - Teachoo.png

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CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo