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  • Structure of Bacteria
  • Which of the following is a mordant that is used in gram ...
Multiple choice

Which of the following is a mordant that is used in gram staining of bacteria?

  1. Alcohol

  2. Safranine

  3. Crystal violet

  4. Iodine

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Iodine is used as a mordant in gram staining. It forms a coordination complex with dye and helps in binding of dye to the cell or tissue.

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