Q. How much percentage of aqueous solution of phenol rapidly kills the vegetative cells of microorganisms?

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Q. The antimicrobial activity of phenolics is not reduced at which of the following conditions?

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Q. Alcohol concentrations above 60% are effective against _________________

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Q. Polyvinylpyrrolidone (PVP) is a complex belonging to which group?

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Q. Which of the following agents irreversibly oxidize and inactivate proteins with sulphydral groups?

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Q. Chlorinated lime is the alternative name for __________________

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Q. Chloramines are more stable than than hypochlorites.

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Q. Solutions of sodium hypochlorite of a 1% concentration are used for ________

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Q. Which among the following is an example of organic compound of mercury?

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Q. Which of the following methods is used for determining the decrease in the amount of growth?

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Q. Liquid water-soluble substances appropriately diluted are dispensed into sterile test tubes, to which are added a measured amount of the test organism and then this is transferred into tubes of sterile media.This method helps in determining _____________________

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Q. We observe increased growth in nutrient agar plates as concentration of chemical agent is decreased.

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Q. Which of the following acts as a test organism in the procedure of phenol-coefficient method?

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Q. Which of the following chemical agents lack penetrating power?

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Q. Which of the following agent is used to disinfect skin?

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Q. Iodine kills the microorganisms by causing denaturation of proteins.

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Q. Which of the following is the mode of action of formaldehyde?

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Q. For sterilization of plastic syringes in hospitals which of the following agents are used?

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Q. Which of the following agents cause death to the cell by coagulation of cytoplasmic proteins?

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Q. Gram-negative organisms are more susceptible to higher concentrations of triphenylmethane dyes.

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