All are physical methods of sterilisation except: (A) Sunlight, (B) Gases, (C) Filtration, (D) Heat
Answer is B. Physical Methods of SterilizationHeatRadiationFiltration Chemical Methods of Sterilization: using toxic gasses Ex: ETO, Formalin gas Ref : Ananthanarayana textbook of Microbiology 9th edition Pgno : 33