6th Class Science Separation of Substances Question Bank Sepration and Substances

  • question_answer
    DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Lemonade is prepared by mixing lemon juice an sugar in water. You extracted lemon juice from lemon and used some method to remove solid particles of pulp from it before mixing it with water. Now you add sugar and ice to the above solution before serving it. In which case would the lesser amount of sugar be dissolved in it.

    A) If we first add ice        

    B) If we first add sugar

    C) If we use a stirrer

    D) Can't predict

    Correct Answer: A

    Solution :

        The solubility of sugar in water increases with increase in temperature. If ice is added before adding sugar the temperature will be lower and therefore lesser amount of sugar get dissolved.


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