What happened to potassium and sodium kept in copper when they emerged in kerosene oil?????
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When potassium and sodium are kept in open air, they react very violently with the atmospheric oxygen and this reaction is so vigorous that it can catch fire easily and a lot of heat if produced during the reaction. ... So, to prevent the violent reaction, potassium and sodium is kept immersed in kerosene oil.
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CBSE 10, Chemistry, CBSE- Metals and Non-Metals, NCERT ...
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