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Microbiology - Physical and Chemical Agents

Exercise : Physical and Chemical Agents - Section 1
  • Physical and Chemical Agents - Section 1
26.
Which of the following was the first widely used antiseptic and disinfectant?
Chlorine
Phenol
Iodine
Alcohol
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
If a 1:600 dilution of a test compound kills a standard population of Staphylococcus aureus in 10 minutes but not 5 minutes while a 1:60 dilution of phenol kills the population in the same time, what is the phenol coefficient of the test compound?
1
5
10
50
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Microbes can be removed from a liquid solution by the process of
filtration
freeze-drying
osmosis
desiccation
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
Which of the following is bactericidal?
Membrane filtration
Ionizing radiation
Freeze-drying
Deep freezing
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which of the following process can be efficiently carried out by incineration?
Sterilization of scalpel blades and needles
Sterilization of all glass syringes
Sterilization of points of forceps
Destruction of contaminated materials
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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