SCIENCE
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to make it nice and slippery
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to keep it away from air and water
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it burns with an orange flame
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None of the above
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Detailed explanation-1: -Sodium is stored in kerosene because sodium reacts vigourously with oxygen and moisture due to its high reactivity so keeping it in kerosene will prevent sodium from coming in contact with oxygen and moisture. Q.
Detailed explanation-2: -Sodium is an extremely reactive metal. It reacts so violently with the oxygen, carbon dioxide, and moisture in the air that it may even start a fire. Sodium does not react with kerosene oil. So, Sodium is kept immersed in kerosene oil to prevent this explosive reaction.
Detailed explanation-3: -Sodium, potassium, and lithium are very reactive metals and react vigorously with air as well as water. Therefore, they are kept immersed in kerosene oil in order to prevent their contact with air and moisture.
Detailed explanation-4: -Contact with water should be avoided because sodium reacts violently with water to form hydrogen (H2) with evolution of sufficient heat to cause ignition.
Detailed explanation-5: -Sodium metal reacts with water and is thus typically stored under mineral oil or kerosene.