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MCQs

Total Questions : 147 | Page 10 of 15 pages
Question 91. Ion exchange chromatography is based on the
  1.    electrostatic attraction
  2.    electrical mobility of ionic species
  3.    adsorption chromatography
  4.    partition chromatography
 Discuss Question
Answer: Option A. -> electrostatic attraction
Answer: (a).electrostatic attraction
Question 92. A combination of paper chromatography and electrophoresis involves
  1.    partition chromatography
  2.    electrical mobility of the ionic species
  3.    both (a) and (b)
  4.    none of these
 Discuss Question
Answer: Option C. -> both (a) and (b)
Answer: (c).both (a) and (b)
Question 93. In reverse phase chromatography, the stationary phase is made
  1.    non-polar
  2.    polar
  3.    either non-polar or polar
  4.    none of these
 Discuss Question
Answer: Option A. -> non-polar
Answer: (a).non-polar
Question 94. The general expression for the appearance of a solute in an effluent is (where V is the elution volume of a substance , V0 void volume, kD distribution constant and Vi internal water volume)
  1.    V = V0 + kDVi
  2.    V = V0/Vi
  3.    V = V0 - kDVi
  4.    V/V0 = kDVi
 Discuss Question
Answer: Option A. -> V = V0 + kDVi
Answer: (a).V = V0 + kDVi
Question 95. In reverse phase chromatography, the stationary phase is made
  1.    polar
  2.    either non-polar or polar
  3.    none of these
  4.    non-polar
 Discuss Question
Answer: Option D. -> non-polar
Question 96. In gas chromatography, the basis for separation of the components of the volatile material is the difference in
  1.    conductivity
  2.    partition coefficients
  3.    molarity
  4.    molecular weight
 Discuss Question
Answer: Option B. -> partition coefficients
Question 97. The general expression for the appearance of a solute in an effluent is (where V is the elution volume of a substance , V0 void volume, kD distribution constant and Vi internal water volume)
  1.    V = V0/Vi
  2.    V/V0 = kDVi
  3.    V = V0 - kDVi
  4.    V = V0 + kDVi
 Discuss Question
Answer: Option D. -> V = V0 + kDVi
Question 98. Ion exchange chromatography is based on the
  1.    electrostatic attraction
  2.    partition chromatography
  3.    adsorption chromatography
  4.    electrical mobility of ionic species
 Discuss Question
Answer: Option A. -> electrostatic attraction
Question 99. Thin layer chromatography is
  1.    electrical mobility of ionic species
  2.    partition chromatography
  3.    adsorption chromatography
  4.    None of these
 Discuss Question
Answer: Option C. -> adsorption chromatography
Question 100. A combination of paper chromatography and electrophoresis involves
  1.    none of these
  2.    both (a) and (b)
  3.    electrical mobility of the ionic species
  4.    partition chromatography
 Discuss Question
Answer: Option B. -> both (a) and (b)

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