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.


adversite


You need to login to perform this action.
You will be redirected in 3 sec spinner

Free
Videos