Home › Karnataka SSLC (Class 10) › Science › Metals and Non-metals › Sodium metal is stored under kerosene oil becaus…
Sodium metal is stored under kerosene oil because it
Areacts vigorously with air and moisture
Bdissolves readily in kerosene
Cis lighter than kerosene oil
Dmelts at room temperature
Answer & Solution
Correct answer: A. reacts vigorously with air and moisture
1. Sodium is very high in the reactivity series and reacts violently with the oxygen and moisture in air, even catching fire.
2. Storing it immersed in **kerosene** cuts off contact with air and moisture, preventing accidental fires.
3. Potassium is stored the same way for the same reason.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch3 'Metals and Non-metals', §3.2.1_
Related questions
Galvanisation protects iron and steel from rusting by coating them with a thin layer ofWhy do ionic compounds such as NaCl conduct electricity in the molten state but not when sAn element reacts with oxygen to give an oxide with a high melting point that is also soluFood cans are coated with tin rather than zinc becauseBrass is an alloy ofIn the experiment on rusting, iron nails rust only in the test tube where the nails are exIn the electrolytic refining of copper, the anode and the cathode are respectivelyThe reaction Fe₂O₃ + 2Al → 2Fe + Al₂O₃ + heat, used to join railway tracks, is known as th