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Total Questions : 136 | Page 13 of 14 pages
Question 121. Given below is the diagram of ‘Process of chromatographic column’. Identify the unmarked component in the process.Given Below Is The Diagram Of ‘Process Of Chromatographic ...
  1.    Reservoir
  2.    Collection tank
  3.    Microprocessor
  4.    Detector
 Discuss Question
Answer: Option D. -> Detector
Answer: (d).Detector
Question 122. Which of the following steps takes place after injection of feed in Column chromatography?
  1.    Detection of components
  2.    Separation in the column
  3.    Elution from the column
  4.    Collection of eluted component
 Discuss Question
Answer: Option B. -> Separation in the column
Answer: (b).Separation in the column
Question 123. In chromatogram, the position of peaks on the time axis can be used to determine which of the following?
  1.    Components of the sample
  2.    Amount of component in the sample
  3.    Column efficiency
  4.    Column resolution
 Discuss Question
Answer: Option A. -> Components of the sample
Answer: (a).Components of the sample
Question 124. Components with a strong attraction to the support move more slowly than components with weak attraction.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 125. In chromatogram, the area under the peak can be used to determine which of the following?
  1.    Components of the sample
  2.    Amount of component in the sample
  3.    Column efficiency
  4.    Column resolution
 Discuss Question
Answer: Option B. -> Amount of component in the sample
Answer: (b).Amount of component in the sample
Question 126. What happens during the ‘elution from the column’ phase in chromatography?
  1.    Components with greatest affinity elute first
  2.    Components with least affinity elute first
  3.    Components elute in a random manner
  4.    Components elute according to their concentration in the mixture
 Discuss Question
Answer: Option B. -> Components with least affinity elute first
Answer: (b).Components with least affinity elute first
Question 127. Which of the following is defined as the ratio of moles of solute in stationary phase to the moles of solute in the mobile phase?
  1.    Distribution constant
  2.    Volumetric phase ratio
  3.    Retention factor
  4.    Total porosity
 Discuss Question
Answer: Option C. -> Retention factor
Answer: (c).Retention factor
Question 128. Which of the following is the ratio of the interstitial volume of packing to the volume of its total mass?
  1.    Distribution constant
  2.    Volumetric phase ratio
  3.    Retention factor
  4.    Total porosity
 Discuss Question
Answer: Option D. -> Total porosity
Answer: (d).Total porosity
Question 129. Which of the following is the ratio of the length of column packing to dead 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 B. -> Average linear rate of mobile migration
Answer: (b).Average linear rate of mobile migration
Question 130. Retention distance is the distance between point of injection and minimum peak in the recorder or computer generated chart.
  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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