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Physical and Chemical Agents

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

Alcohol
Iodine
Phenol
Chlorine

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Physical and Chemical Agents
A(n)____is used to prevent infection by killing or inhibiting pathogen growth on animal tissues.

sanitizer
bacteriostatic agent
disinfectant
antiseptic

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

Merthiolate
Phenol
Hexachlorophene
Cetylpyridinium chloride

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Physical and Chemical Agents
Which of the following is best to sterilize heat labile solutions?

Autoclave
Dry heat
Pasteurization
Membrane filtration

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

dry heat
UV radiation
tyndalization
pasteurization

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Physical and Chemical Agents
Iodophores are mixture of

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

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