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Biology · PYQ NEET UG 2023

हिन्दी

Cellulose does not form blue colour with Iodine because

  1. It is a disaccharide.
  2. It is a helical molecule.
  3. It does not contain complex helices and hence cannot hold iodine molecules.
  4. It breakes down when iodine reacts with it.

Correct answer · Option 3

It does not contain complex helices and hence cannot hold iodine molecules.

Explanation

Cellulose does not contain complex helices and therefore cannot hold iodine molecules to give a blue color.
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