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  3. 9th Class
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9th Class Science Sample Paper Sample Paper - 3 Term - 1

  • question_answer
      (a) Students were instructed to add a few drops of iodine solution to each of the following samples. The content turned blue-black in which sample? (b) Name the adulterant of arhar (tuvar) dal.

    Answer:

      (a) In the samples of cooked rice and barley powder the content turned blue-black.                                                       (1) (b) Metanil yellow.                                                                                                                                                                          (1)


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