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Question

Sodium metal is kept immersed in kerosene oil. This is because

This question was previously asked in
CDS 2 2026 Maths Question Paper (13-Sep-2026)
The correct answer is

It reacts violently with moisture in air

Sodium is a highly reactive alkali metal that reacts violently with the moisture and oxygen present in air, which can cause it to catch fire or corrode. To prevent this, sodium metal is stored immersed in kerosene oil, an inert medium that keeps it away from air and moisture.

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