Microbiology General 970c1dfd Gram staining sequence is A Carbol fuchsin – Iodine – Acetone – Methyl violet B Methyl violet – Iodine – Acetone – Carbol fuchsin C Methyl violet – Acetone – Iodine – Carbol fuchsin D Carbol fuchsin – Acetone – Iodine – Methyl violet High-Yield Explanation Primary stain – Crystal violet or Methyl violet Mordant – Gram's iodine Decolorizer – Acetone or Ethanol Secondary stain – Safranin or Carbol fuchsin