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Physical and Chemical Agents

Physical and Chemical Agents
The organisms retained in the fluids filtered by Seitz filter is

None of these
Proteus
Staphylococcus
Clostridium

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Physical and Chemical Agents
Which is the most important surface active disinfectants?

Amphoteric compounds
Non-ionic compounds
Anionic compounds
Cationic compounds

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Physical and Chemical Agents
Which of the following material is sterilized by heating at 160°C in a hot air oven for one hour?

All-glass syringes
Oils and jellies
All of these
Swab sticks

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Physical and Chemical Agents
Bactericidal concentration of phenol is

0.5%
0.75%
1%
0.25%

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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 located in the center of an object
failure to kill bacteria
failure to bacterial spores
failure to kill microbes in a closed environment

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Physical and Chemical Agents
Iodophores are mixture of

iodine and phenols
iodine and alcohols
iodine and surface active agents
iodine and aldehydes

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