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MCQs

Total Questions : 136 | Page 14 of 14 pages
Question 131. Which of the following is the ratio of a length of column packing to retention time?
  1.    Average linear rate of solute migration
  2.    Average linear rate of mobile migration
  3.    Relative migration rate
  4.    Selectivity factor
 Discuss Question
Answer: Option A. -> Average linear rate of solute migration
Answer: (a).Average linear rate of solute migration
Question 132. Retention volume can be obtained by finding the product of which of the following parameters?
  1.    Dead time and total porosity
  2.    Retention time and volumetric flow rate
  3.    Adjusted retention time and volumetric flow rate
  4.    Retention time and total porosity.
 Discuss Question
Answer: Option B. -> Retention time and volumetric flow rate
Answer: (b).Retention time and volumetric flow rate
Question 133. Retention factor is also known as the capacitance factor.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 134. What must be the value of the selectivity factor?
  1.    Equal to 1
  2.    Less than 1
  3.    Greater than 1
  4.    Greater than 0
 Discuss Question
Answer: Option C. -> Greater than 1
Answer: (c).Greater than 1
Question 135. Which of the following is the distance that the solute moves while undergoing one partition?
  1.    Retention distance
  2.    Distribution constant
  3.    Plate height
  4.    Column packing length
 Discuss Question
Answer: Option C. -> Plate height
Answer: (c).Plate height
Question 136. Which of the following conditions will cause the efficiency of the column to increase?
  1.    Plate number becomes greater, plate height becomes smaller
  2.    Plate number becomes smaller, plate height becomes smaller
  3.    Plate number becomes greater, plate height becomes larger
  4.    Plate number becomes greater, plate height becomes larger
 Discuss Question
Answer: Option A. -> Plate number becomes greater, plate height becomes smaller
Answer: (a).Plate number becomes greater, plate height becomes smaller

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