Q. Chloramines are more stable than than hypochlorites.

View solution

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

View solution

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

View solution

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

View solution

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 _____________________

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

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

View solution

Q. Which of the following is an acridine dye?

View solution

Q. Gonococci are inhibited by tryptoflavine in dilutions of ____________________

View solution

Q. Ceepryn belongs to which of the following categories?

View solution

Q. Which of the following agents are used as a preservative in ophthalmic solutions?

View solution

Q. The phospholipids present in cytoplasm membrane of the archaeo-bacteria is

View solution

Q. The oldest eukaryotic organisms are considered to be

View solution