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4th Class Science Question Bank Science Mock Test-10

  • question_answer
    Harish wants to test the presence of starch in a leaf. Given below are the instructions to conduct the experiment. Which of the following step is NOT necessary?

    A)  Boil the leaf first in water and then in alcohol.

    B)   Wash the bleached leaf.

    C)   Heat the leaf on a hot flame.

    D)   Add a few drops of iodine solution to the bleached leave.

    Correct Answer: C

    Solution :

    Not Available


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