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

  • question_answer
    Geetika poured 20 g of salt into 200 mL of water in a beaker. She stirred the water to dissolve the salt completely. Then she heated the solution until it was reduced to half. How many grams of salt can be recovered from the remaining solution?

    A)                     \[\text{0 g}\]                           

    B) \[\text{10 g}\] 

    C)        \[\text{20 g}\] 

    D)        \[\text{40 g}\]

    Correct Answer: C

    Solution :

    Same amount of salt will be recovered as in the process of evaporation only solvent (i.e., water) evaporates and the solute (i.e., salt) is left behind in the beaker in the form of residue.


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