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Physical and Chemical Agents

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

Hot air sterilization
Pasteurization
Incineration
Autoclave

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Physical and Chemical Agents
Milk is pasteurized in batch method by keeping it at

72°C for 6 minutes
63°C for 30 minutes
73°C for 30 minutes
72°C for 60 seconds

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

filtration
desiccation
freeze-drying
osmosis

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

Thermometers
Bronchoscopes
Cystoscopes
All of these

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

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

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

Cetylpyridinium chloride
Merthiolate
Phenol
Hexachlorophene

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