Which of the following is an impoant disinfectant on account of effectively destroying gram positive and gram negative bacteria, viruses and even spores at low pH levels?: (A) Phenol, (B) Alcohol, (C) Chlorine, (D) Hexachlorophene
Answer is C. Chlorine is used commonly as hypochlorites chlorine and hypochlorite are markedly bactericidal. They have a wide spectrum of action against viruses. The organic chloramines are used as antiseptics for dressing wounds REF:Ananthanarayan & Panicker's Textbook of Microbiology 9th edition pg no:35