Chemical Agents MCQ

Test your knowledge with important Chemical Agents MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Chemical Agents MCQs at Bissoy

• Which of the following agents are used as a preservative in ophthalmic solutions?
  ক

  alcohol

  খ

  quaternary ammonium salts

  গ

  phenol

  ঘ

  aldehydes
• Ceepryn belongs to which of the following categories?
  ক

  Anionic detergents

  খ

  Cationic detergents

  গ

  Nonionic detergents

  ঘ

  Ammonium salts
• Gonococci are inhibited by tryptoflavine in dilutions of ____________
  ক

  1:200,000

  খ

  1:300,000

  গ

  1:1,000,000

  ঘ

  1:10,000,000
• Which of the following is an acridine dye?
  ক

  crystal violet

  খ

  malachite green

  গ

  tryptoflavine

  ঘ

  brilliant green
• Gram-negative organisms are more susceptible to higher concentrations of triphenylmethane dyes.
  ক

  True

  খ

  False
• Which of the following agents cause death to the cell by coagulation of cytoplasmic proteins?
  ক

  Alcohol

  খ

  Dyes

  গ

  Chlorine

  ঘ

  Heavy metals
• Which among the following is an example of an organic compound of mercury?
  ক

  Mercuric chloride

  খ

  Mercuric oxide

  গ

  Mercurochrome

  ঘ

  Ammoniated mercury
• Solutions of sodium hypochlorite of a 1% concentration are used for ________
  ক

  sanitizing dairy equipment

  খ

  personal hygiene and a household disinfectant

  গ

  household bleaches

  ঘ

  disinfecting open wounds
• Chloramines are more stable than than hypochlorites.
  ক

  True

  খ

  False
• Chlorinated lime is the alternative name for __________________
  ক

  Calcium hypochlorite

  খ

  Sodium hypochlorite

  গ

  Chloramine-T

  ঘ

  Azochloramide
• Which of the following agents irreversibly oxidize and inactivate proteins with sulphydral groups?
  ক

  Alcohol

  খ

  Phenol

  গ

  Iodine

  ঘ

  Chlorine
• Polyvinylpyrrolidone (PVP) is a complex belonging to which group?
  ক

  Phenolic compounds

  খ

  Iodophors

  গ

  Metals

  ঘ

  Aldehyde
• Alcohol concentrations above 60% are effective against _________________
  ক

  bacteria

  খ

  fungi

  গ

  germs

  ঘ

  viruses
• The antimicrobial activity of phenolics is not reduced at which of the following conditions?
  ক

  acidic pH

  খ

  alkaline pH

  গ

  low temperatures

  ঘ

  presence of soap
• How much percentage of the aqueous solution of phenol rapidly kills the vegetative cells of microorganisms?
  ক

  1%

  খ

  2%

  গ

  5%

  ঘ

  10%