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Physical and Chemical Agents

Physical and Chemical Agents
Media containing spores and thermolabile constituents are sterilized by

tyndalization
UV radiation
dry heat
pasteurization

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Physical and Chemical Agents
Which of the following substances can sterilize?

Chlorine
Ethylene oxide
Alcohol
Cetylpyridinium chloride

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Physical and Chemical Agents
All of the following are sporicidal except

alcohol
glutaraldehyde
formaldehyde
ethylene oxide

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Physical and Chemical Agents
Which of the following has most heat resistant spores?

Clostridium perfringens
Bacillus cereus
Clostridium histolyticum
Bacillus stearothermophilus

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Physical and Chemical Agents
Which disinfectant was the most effective against Salmonella"?

Merthiolate
Phenol
Cetylpyridinium chloride
Hexachlorophene

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Physical and Chemical Agents
Which of the following does not kill endospores?

Hot air sterilization
Pasteurization
Incineration
Autoclave

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