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  3. 4th Class
  4. Science
  5. Plants and Animals

4th Class Science Plants and Animals Question Bank Plant Life - II (How Plants Make Food)

  • question_answer
    Which of the following is used to test the presence of starch?

    A)  Iodine solution

    B)  Copper sulphate solution

    C)  Potassium hydroxide

    D)  Alcohol

    Correct Answer: A

    Solution :

    Starch turns blue black when iodine solution is added to it.


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