Physical and Chemical Agents One drawback to the use of ultraviolet light as a sterilizing agent is its failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to kill bacteria failure to bacterial spores failure to kill microbes in a closed environment failure to kill microbes located in the center of an object failure to kill bacteria failure to bacterial spores ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which is the most important surface active disinfectants? Amphoteric compounds Cationic compounds Anionic compounds Non-ionic compounds Amphoteric compounds Cationic compounds Anionic compounds Non-ionic compounds ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Bactericidal concentration of phenol is 0.75% 0.5% 0.25% 1% 0.75% 0.5% 0.25% 1% ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following is most effective for sterilizing mattresses and plastic petri plates? Ultraviolet radiation Glutaraldehyde Chlorine Ethylene oxide Ultraviolet radiation Glutaraldehyde Chlorine Ethylene oxide ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Preservation of foods by using salts and sugars works by creating a hypertonic environment creating a hypotonic environment raising pH lowering osmotic pressure creating a hypertonic environment creating a hypotonic environment raising pH lowering osmotic pressure ANSWER DOWNLOAD EXAMIANS APP
Physical and Chemical Agents Which of the following skin disinfectant(s) is/are most frequently used? none of these Isopropyl alcohol Both (a) and (b) Ethyl alcohol none of these Isopropyl alcohol Both (a) and (b) Ethyl alcohol ANSWER DOWNLOAD EXAMIANS APP
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