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Physical and Chemical Agents

Physical and Chemical Agents
The process of making an object free from living organisms including bacterial and fungal spores and viruses is known as

antisepsis
pasteurization
sterilization
disinfection

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Physical and Chemical Agents
Which of the following is not a disinfectant containing a heavy metal?

Copper sulfate
Chlorine
Mercurochrome
Silver nitrate

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Physical and Chemical Agents
The time in minutes at a specific temperature needed to kill a population of cells is the

decimal reduction time
F value
thermal death point
thermal death temperature

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

Dry heat
Pasteurization
Membrane filtration
Autoclave

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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
Swab sticks
All of these
Oils and jellies

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

Phenol
Cetylpyridinium chloride
Hexachlorophene
Merthiolate

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