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Physical and Chemical Agents

Physical and Chemical Agents
Which of the following substances can sterilize?

Alcohol
Ethylene oxide
Cetylpyridinium chloride
Chlorine

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

Non-ionic compounds
Amphoteric compounds
Anionic compounds
Cationic compounds

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Physical and Chemical Agents
The time required to kill 90% of the microorganisms in a sample at a specific temperature is the

decimal reduction time
thermal death point
D value
F value

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

Cetylpyridinium chloride
Hexachlorophene
Merthiolate
Phenol

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Physical and Chemical Agents
The lowest temperature that kills all microorganisms in a liquid suspension in 10 minutes is known as the

thermal death time
thermal death temperature
decimal reduction time
thermal death point

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Physical and Chemical Agents
For sterilization of which material gamma rays can be used?

Plastic syringes
Catheters
None of these
Canulas

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