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MCQs

Total Questions : 86 | Page 1 of 9 pages
Question 1. Which of the following are usually not degraded by aerobic degradation of nitro-aromatics?
  1.    Di-nitro derivatives
  2.    Mono derivatives
  3.    Poly-nitro derivatives
  4.    Amino aromatics
 Discuss Question
Answer: Option D. -> Amino aromatics
Answer: (d).Amino aromatics
Question 2. Which of the following helps to hydrolyze the nitro-aromatics?
  1.    Exo enzymes
  2.    Endo enzymes
  3.    Sodium
  4.    Potassium
 Discuss Question
Answer: Option A. -> Exo enzymes
Answer: (a).Exo enzymes
Question 3. Which of the following can be used for decontamination of nitro aromatic pesticides from the soil?
  1.    Ex situ techniques
  2.    In situ techniques
  3.    Poly-nitro derivatives
  4.    Amino aromatics
 Discuss Question
Answer: Option A. -> Ex situ techniques
Answer: (a).Ex situ techniques
Question 4. Nitro-aromatic compounds found in the environment are known as which of the following?
  1.    Water
  2.    Oxygen
  3.    Carbon
  4.    Recalcitrant
 Discuss Question
Answer: Option D. -> Recalcitrant
Answer: (d).Recalcitrant
Question 5. Which of the following property is shown by the exo-enzyme with bio polymers?
  1.    Adsorption
  2.    Absorption
  3.    Miscibility
  4.    Immiscibility
 Discuss Question
Answer: Option A. -> Adsorption
Answer: (a).Adsorption
Question 6. Which of the following microorganisms is involved in dealkylation process?
  1.    Birds
  2.    Fungi
  3.    Human
  4.    Vertebrates
 Discuss Question
Answer: Option B. -> Fungi
Answer: (b).Fungi
Question 7. Which of the following is not a method of dealkylation using microorganisms?
  1.    Adsorption
  2.    Chemical precipitation
  3.    Microbial demethylations
  4.    Reverse osmosis
 Discuss Question
Answer: Option C. -> Microbial demethylations
Answer: (c).Microbial demethylations
Question 8. How fungi help in de-alkylation?
  1.    Oxidation
  2.    Reduction
  3.    Assimilation
  4.    Accumulation
 Discuss Question
Answer: Option A. -> Oxidation
Answer: (a).Oxidation
Question 9. Which of the following technique is used to metabolize cresols?
  1.    Activated Alumina
  2.    Microbial dealkylation
  3.    Reverse osmosis
  4.    Chemical precipitation
 Discuss Question
Answer: Option B. -> Microbial dealkylation
Answer: (b).Microbial dealkylation
Question 10. Pesticides with more than one alkoxyl group cannot be de-alkylated.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False

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