All the following agents can be used as skin disinfectants, except: (A) Chloroxylenol, (B) Tincture iodine, (C) Quaternary ammonium compounds, (D) Isopropyl alcohol
Answer is C. Chloroxylenol - Phenol. Tincture iodine - Halogen, Isopropyl alcohol - Alcohol Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 33