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MCQs

Total Questions : 91 | Page 4 of 10 pages
Question 31. Acid phosphatase: Mannose:: Alpha amylase: ______________
  1.    KCl
  2.    Glycogen
  3.    Adenosine
  4.    Methyl-D-mannoside
 Discuss Question
Answer: Option B. -> Glycogen
Answer: (b).Glycogen
Question 32. Which of the following information cannot be obtained by using analytical HPLC?
  1.    Isolation of a compound
  2.    Identification of a compound
  3.    Quantification of a compound
  4.    Resolution of a compound
 Discuss Question
Answer: Option A. -> Isolation of a compound
Answer: (a).Isolation of a compound
Question 33. __________________ refers to the process of separating or extracting the target compound from other compounds or contaminants.
  1.    Quantification of a compound
  2.    Identification of a compound
  3.    Purification of a compound
  4.    Chemical separations
 Discuss Question
Answer: Option C. -> Purification of a compound
Answer: (c).Purification of a compound
Question 34. To alter the retention time, which of the following parameters need not be manipulated?
  1.    Choice of column
  2.    Choice of mobile phase
  3.    Choice in flow rate
  4.    Sample type
 Discuss Question
Answer: Option D. -> Sample type
Answer: (d).Sample type
Question 35. _____________ can be achieved using HPLC by utilizing the fact that certain compounds have different migration rates given a particular column and mobile phase.
  1.    Purification of a compound
  2.    Chemical separations
  3.    Identification of a compound
  4.    Quantification of compound
 Discuss Question
Answer: Option B. -> Chemical separations
Answer: (b).Chemical separations
Question 36. The process of determining the unknown concentration of a compound in a known solution by using HPLC is referred to as _______________
  1.    quantification of a compound
  2.    purification of a compound
  3.    chemical separations
  4.    identification of a compound
 Discuss Question
Answer: Option A. -> quantification of a compound
Answer: (a).quantification of a compound
Question 37. The gradient separates the analyte mixture as a function of affinity of the analyte for the mobile phase relative to stationary phase.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 38. In _________ elution, the compounds are eluted by increasing the strength of the organic solvent during HPLC.
  1.    nonspecific
  2.    gradient
  3.    specific
  4.    isocratic
 Discuss Question
Answer: Option B. -> gradient
Answer: (b).gradient
Question 39. In HPLC, the compounds are eluted using a constant mobile phase composition and is referred to as _____________
  1.    nonspecific elution
  2.    isocratic elution
  3.    specific elution
  4.    gradient elution
 Discuss Question
Answer: Option B. -> isocratic elution
Answer: (b).isocratic elution
Question 40. In which chromatographic technique, the solvent velocity and constant flow rate is controlled?
  1.    Affinity chromatography
  2.    Ion-exchange chromatography
  3.    Fast protein liquid chromatography (FPLC)
  4.    Gel permeation
 Discuss Question
Answer: Option C. -> Fast protein liquid chromatography (FPLC)
Answer: (c).Fast protein liquid chromatography (FPLC)

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