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MCQs

Total Questions : 46 | Page 5 of 5 pages
Question 41. 0.3 % of trace metals can be found in E. coli.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 42. Which of the following is not a method of heavy metal removal from water?
  1.    Adsorption
  2.    Chemical precipitation
  3.    Biogas
  4.    Reverse osmosis
 Discuss Question
Answer: Option C. -> Biogas
Answer: (c).Biogas
Question 43. Which of the following technique is not used to filter out heavy metals?
  1.    Activated Alumina
  2.    Carbon
  3.    Reverse osmosis
  4.    Chemical precipitation
 Discuss Question
Answer: Option D. -> Chemical precipitation
Answer: (d).Chemical precipitation
Question 44. Boiling the water can remove heavy metals.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 45. Phyto-mining is used to extract copper from contaminated soil.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 46. Which of the following doesn’t have high levels of heavy metals?
  1.    Bread
  2.    Distilled water
  3.    Coffee
  4.    Fish
 Discuss Question
Answer: Option B. -> Distilled water
Answer: (b).Distilled water

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