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9th Class Science Is Matter Around Us Pure Question Bank Is Matter Around us Pure

  • question_answer
    Which of the following processes can be useful in separating the salt from a mixture of sand and salt?

    A)  Dissolution   

    B)         Filtration

    C)  Evaporation  

    D)         All of the above  

    Correct Answer: D

    Solution :

     The mixture of salt and sand is taken and some water is added to it and stirred until the salt dissolves completely. The solution is filtered and the filtrate obtained is dried, evaporated to get pure salt. The residue on the filter paper will be sand.


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