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MCQs

Total Questions : 339 | Page 2 of 34 pages
Question 11. Chlorinated lime is the alternative name for __________________
  1.    Calcium hypochlorite
  2.    Sodium hypochlorite
  3.    Chloramine-T
  4.    Azochloramide
 Discuss Question
Answer: Option A. -> Calcium hypochlorite
Answer: (a).Calcium hypochlorite
Question 12. Which among the following is an example of organic compound of mercury?
  1.    Mercuric chloride
  2.    Mercuric oxide
  3.    Mercurochrome
  4.    Ammoniated mercury
 Discuss Question
Answer: Option C. -> Mercurochrome
Answer: (c).Mercurochrome
Question 13. Which of the following methods is used for determining the decrease in the amount of growth?
  1.    test done on agar medium plate
  2.    test done into an agar medium or broth
  3.    test done by transfering water-soluble substances to sterile media
  4.    by phenol-coefficient method
 Discuss Question
Answer: Option B. -> test done into an agar medium or broth
Answer: (b).test done into an agar medium or broth
Question 14. Solutions of sodium hypochlorite of a 1% concentration are used for ________
  1.    sanitizing dairy equipments
  2.    personal hygiene and a household disinfectant
  3.    household bleaches
  4.    disinfecting open wounds
 Discuss Question
Answer: Option B. -> personal hygiene and a household disinfectant
Answer: (b).personal hygiene and a household disinfectant
Question 15. Chloramines are more stable than than hypochlorites.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 16. What are the blood serum proteins produced by animals called?
  1.    Enzymes
  2.    Antibodies
  3.    Amino acids
  4.    Toxins
 Discuss Question
Answer: Option B. -> Antibodies
Answer: (b).Antibodies
Question 17. The DNA of Klebsiella pneumonia has a moles % G+C content of?
  1.    70-71
  2.    50-53
  3.    56-58
  4.    32-35
 Discuss Question
Answer: Option C. -> 56-58
Answer: (c).56-58
Question 18. The DNA molecule of microorganisms is made up of base pairs of ________________
  1.    guanine-cytosine
  2.    adenine-thymine
  3.    adenine-cytosine
  4.    guanine-cytosine and adenine-thymine
 Discuss Question
Answer: Option D. -> guanine-cytosine and adenine-thymine
Answer: (d).guanine-cytosine and adenine-thymine
Question 19. Plamids are circular DNA molecules capable of autonomous replication.
  1.    True
  2.    False
  3.    May be
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 20. Bdellovibrios come under which group of microorganisms?
  1.    Viruses
  2.    Bacteria
  3.    Fungi
  4.    Algae
 Discuss Question
Answer: Option B. -> Bacteria
Answer: (b).Bacteria

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