All are true regarding disinfectants except aEUR': (A) Glutaraldehyde is sporicidal, (B) Hypochlorites are virucidal, (C) Ethylene oxide is intermediate disinfectant, (D) Phenol usually requires organic matter to act
Answer is D. Phenol is bactericidal and readily inactivated organic matter Phenols are bactericidal, but these are not readily inactivated by organic matter. Disinfectant Effective against Susceptible to organic matter Bacteria Spores Virus Formaldehyde +++ +++ +++ - Glutaraldehyde +++ +++ +++ ? Chlorine (hypochlorite) +++ +1- +++ +++ Phenols ++(+) - + +/-