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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following material is sterilized by use of red heat?

Glass slides
Inoculating wires and loops
All-glass syringes
Soiled dressings

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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
none of these
tyndallization
inspissation

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Physical and Chemical Agents
Bactericidal concentration of phenol is

0.5%
0.25%
0.75%
1%

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

Incineration
Autoclave
Pasteurization
Hot air sterilization

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

filtration
osmosis
freeze-drying
desiccation

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

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

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