Which one of the following metals is kept immersed in Kerosene oil to

Which one of the following metals is kept immersed in Kerosene oil to protect it and to prevent accidental fire ?

[amp_mcq option1=”Calcium” option2=”Sodium” option3=”Vanadium” option4=”Magnesium” correct=”option2″]

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UPSC CDS-1 – 2021

Sodium (Na) is a highly reactive alkali metal. It reacts vigorously with moisture and oxygen in the air, which can lead to ignition. To prevent this, sodium is typically stored immersed in kerosene oil, which prevents it from coming into contact with air and water.

– Alkali metals like sodium and potassium are very reactive due to their low ionization energies.
– Kerosene is a non-polar hydrocarbon that does not react with sodium and acts as a barrier against air and moisture.

– Calcium and Magnesium are alkaline earth metals (Group 2) and are less reactive than alkali metals. They react with water but do not require storage in kerosene.
– Vanadium is a transition metal and is much less reactive than the alkali metals.

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