Answers

2015-12-27T10:59:10+05:30
Sodium is a highly reactive element .If it is kept in open air it can catch fire by reacting with oxygen so sodium is kept in kerosene
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2015-12-27T11:03:25+05:30
Being sodium a very reactive metal, By reacting with water or air its get explode nature. In order to avoid this, It is stored in kerosine as just like all the 1A group elements store except lithuim in paraffin wax.
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sodium reacts vigorously in air ,to cut off its contact it is stored under kerosene
gud...