Question
Sodium metal is stored under kerosene because it:
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UPTET 2026 Paper 2 Social Studies Question Paper (3-Jul-2026) (Shift 1)
The correct answer is
Reacts vigorously with air and moisture
Sodium is a highly reactive alkali metal. It reacts vigorously with the oxygen and moisture present in air, often catching fire or forming sodium oxide and sodium hydroxide.
It also reacts violently with water, releasing hydrogen gas and heat, which can cause combustion.
To prevent this uncontrolled reaction with air and moisture, sodium is stored submerged in kerosene, an inert liquid it does not react with.
Thus, sodium is kept under kerosene because it reacts vigorously with air and moisture.
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Important Questions from Classification of Elements and Periodicity in Properties
- Which one of the following statements about alkaline earth metals is NOT true ?
- What element is a greenish yellow gas with a characteristic smell at room temperature?
- In the periodic table, as one goes down the group, which property doesn't change?
- Which of the following is a copper ore?
- Which scientist invented the Periodic table?
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