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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following is most effective for sterilizing mattresses and plastic petri plates?

Ultraviolet radiation
Chlorine
Ethylene oxide
Glutaraldehyde

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Physical and Chemical Agents
Microbes can be removed from a liquid solution by the process of

osmosis
filtration
desiccation
freeze-drying

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

UV radiation
dry heat
pasteurization
tyndalization

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Physical and Chemical Agents
Which of the following was the first widely used antiseptic and disinfectant?

Phenol
Chlorine
Iodine
Alcohol

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Physical and Chemical Agents
The time required to kill 90% of the microorganisms in a sample at a specific temperature is the

D value
decimal reduction time
F value
thermal death point

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Physical and Chemical Agents
Which of the following is sterilized with the help of glutaraldehyde?

Bronchoscopes
Thermometers
All of these
Cystoscopes

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