All of the following are true regarding disinfectants except:
Ans.d. Phenol isbactericidaiand readily inactivated by organic matter Ref: Ananthanarayan 7/e p30, 31, 32; Jawetz 24/e p6]Phenols are bactericidal, but these are not readily inactivated by organic matter. Effective againstSusceptible to organic matterDisinfectantBacteriaSporesVirusFormaldehyde+++++++++-Glutaraldehyde+++++++++-Chlorine (hypochlorite)++++/-++++++Phenols++(+)-++/-
Glutaraldhyde is sporicidal
Hypochlorites are virucidal
Ethylene oxide is intermediate disinfectant
Phenol is bactericidal and readily inactivated by organic matter
General