Give reason - sodium is stored in kerosene.
Answers
Answer:
because it does not react with kerosene if it is kept in water you got a explosion
Sodium and Potassium are highly reactive metals and react vigorously with the oxygen, carbon dioxide and moisture present in the air such that it may even cause a fire. To prevent this explosive reaction, Sodium is kept immersed in kerosene because Sodium doesn't react with kerosene
Why is sodium kept in kerosene?
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Sodium reacts with oxygen, so it has to be kept away from air. Storing it under a liquid is an easy way to do that. Water is our usual go-to liquid, but sodium reacts with water (and also floats on top, because it’s less dense than water), so water is not a good choice. Sodium also reacts with alcohols, so those are no good. It does not react with hydrocarbons, and is denser than all the ones I can think of, so they are a good choice. Kerosene is cheap, pretty non-toxic, does not evaporate as fast as some hydrocarbons, and so is a pretty good choice.
However, for long-term storage, mineral oil is preferred, since kerosene will evaporate eventually if the container is not perfectly sealed.