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Class 10 Science Medium Mcq English Medium

Potassium and sodium are kept immersed in kerosene oil mainly to

Question
Potassium and sodium are kept immersed in kerosene oil mainly to
Increase their weight
Protect them from air and moisture and prevent accidental fires
Make them harder
Improve their electrical conductivity
Answer
Protect them from air and moisture and prevent accidental fires
Detailed Explanation
Storing these highly reactive metals under kerosene oil protects them from air and moisture, preventing accidental fires.
Metals, in their pure state, generally have Science · Metals and Non-metals The shining nature of a freshly cut metal surface is called Science · Metals and Non-metals The ability of metals to be beaten into thin sheets is called Science · Metals and Non-metals The most malleable metals, according to the chapter, are Science · Metals and Non-metals

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