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

  • question_answer
    Siddharth dissolved a mixture into water and then filtered it. Solid X was left behind as residue in the filter paper and solid Y was obtained by evaporating the filtrate to dryness. X and Y could be respectively

    A) Sodium hydroxide and calcium carbonate

    B) Calcium chloride and sodium carbonate

    C) Calcium carbonate and sodium chloride

    D) Sodium carbonate and calcium chloride.

    Correct Answer: C

    Solution :

    Calcium carbonate is insoluble in water hence, it is left behind in the filter paper. Sodium chloride is soluble in water and is obtained by evaporation of solution.


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