8th Class Science Sample Paper Science Sample Paper-3

  • question_answer )                                                                         Sodium metal is kept in kerosene but not in water. Why?                                                                             

    Answer:

    Sodium metal is highly reactive metal, when exposed in air, it starts to burn to form oxide. In the same way, it forms hydroxide with water. It does not react with kerosene. So, to prevent it, it is kept in kerosene, not in water.


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