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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following articles can be sterilized in an autoclave?

All of these
Dressing material
Culture media
Gloves

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Physical and Chemical Agents
Which of the following disinfectants act by disrupting microbial membranes?

Aldehydes
Cationic detergents
Halogens
Heavy metals

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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 bacterial spores
failure to kill bacteria

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Physical and Chemical Agents
Which of the following is/are vapour-phase disinfectant/s?

Formaldehyde
Ethylene oxide
None of these
Both (a) and (b)

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Physical and Chemical Agents
Steam exposure of a material at 100°C for 20 minutes for three consecutive days is known as

autoclaving
tyndallization
inspissation
none of these

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Physical and Chemical Agents
Which of the following compounds are commonly used as general antiseptics to treat cuts and scratches?

Ethylene oxide
None of these
Aldehydes
Halogens

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