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Physical and Chemical Agents

Physical and Chemical Agents
Complete destruction of the microorganisms is commonly known as

antisepsis
disinfection
sterilization
none of these

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

Silver nitrate
Mercurochrome
Chlorine
Copper sulfate

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

sterilization
antisepsis
disinfection
pasteurization

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Physical and Chemical Agents
Which of the following skin disinfectant(s) is/are most frequently used?

Both (a) and (b)
Isopropyl alcohol
none of these
Ethyl alcohol

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Physical and Chemical Agents
Which of the following has most heat resistant spores?

Clostridium perfringens
Clostridium histolyticum
Bacillus cereus
Bacillus stearothermophilus

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

Anionic compounds
Amphoteric compounds
Cationic compounds
Non-ionic compounds

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