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MCQs

Total Questions : 91 | Page 7 of 10 pages
Question 61. Pick odd one out.
  1.    Animal membrane
  2.    Polyethylene
  3.    Ammonium sulphate
  4.    Cellophane tubing
 Discuss Question
Answer: Option C. -> Ammonium sulphate
Answer: (c).Ammonium sulphate
Question 62. The simplest way to remove ammonium sulphate from the system is _____________
  1.    precipitation
  2.    dialysis
  3.    chromatography
  4.    purity checking
 Discuss Question
Answer: Option B. -> dialysis
Answer: (b).dialysis
Question 63. The volume of the solution which is being dialyzed is referred to as diffusate volume.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option B. -> False
Answer: (b).False
Question 64. Which of the following technique uses separation on the basis of particle size?
  1.    Chromatography
  2.    Ultrasonication
  3.    Homogenization
  4.    Filtration
 Discuss Question
Answer: Option D. -> Filtration
Answer: (d).Filtration
Question 65. What is retentate?
  1.    Solution is being dialyzed
  2.    Solvent outside
  3.    Small molecules
  4.    Membrane
 Discuss Question
Answer: Option A. -> Solution is being dialyzed
Answer: (a).Solution is being dialyzed
Question 66. Which of the following is not employed for filtration?
  1.    Filter cloth
  2.    Plate and frame press
  3.    Homogenizer
  4.    Rotary vacuum filter
 Discuss Question
Answer: Option C. -> Homogenizer
Answer: (c).Homogenizer
Question 67. Filter aids are generally used where the liquid phase is required.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 68. Currently, ultrafiltration is mainly used at lab scale.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 69. The process in which high tangential flow of feedstock across the surface of the filter is achieved to avoid the problems of buildup of filter cake is known as ____________
  1.    crossflow microfiltration
  2.    filtration
  3.    ultrafiltration
  4.    rotary vacuum filter
 Discuss Question
Answer: Option A. -> crossflow microfiltration
Answer: (a).crossflow microfiltration
Question 70. The solvent and other dissolve compounds that pass through the membrane is called __________
  1.    diffusate
  2.    retentate
  3.    permeate
  4.    filter cloth
 Discuss Question
Answer: Option C. -> permeate
Answer: (c).permeate

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