The mordant used in Gram staining is
A. Safranine
B. Crystal violet
C. Iodine
D. Ethanol
Answer: Option C
Solution (By Examveda Team)
The mordant used in Gram staining is Iodine.The mordant is Gram's Iodine. This binds to the crystal violet making a large complex that adheres to the cell membrane.
Gram's Iodine is allowed to sit for 30 seconds then the decolourizer, 95% ethanol is added.
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