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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

sterilization
pasteurization
antisepsis
disinfection

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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
Which disinfectant would be most effective against Staphylococcus found in a blood spill?

Phenol
None of these
Cetylpyridinium chloride
Hexachlorophene

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Physical and Chemical Agents
Steam exposure of a material at 100°C for 20 minutes for three consecutive days is known as

tyndallization
inspissation
autoclaving
none of these

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Physical and Chemical Agents
If a canning procedure is not properly followed, which type of microbe is most likely to grow in the canned food?

Acidophile
Mesophile
Obligate Aerobe
Obligate Anaerobe

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

Proteus
None of these
Clostridium
Staphylococcus

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