Chromatography Questions and Answers

Multiple Choice Questions and Answers on Chromatography

Question 1 : A combination of paper chromatography and electrophoresis involves

  1. partition chromatography
  2. electrical mobility of the ionic species
  3. both (1) and (2)
  4. none of these

Answer : 3

Question 2 : Thin layer chromatography is

  1. partition chromatography
  2. electrical mobility of ionic species
  3. adsorption chromatography
  4. none of the above

Answer : 3

Question 3 : In gas chromatography, the basis for separation of the components of the volatile material is the difference in

  1. partition coefficients
  2. conductivity
  3. molecular weight
  4. molarity

Answer : 1

Question 4 : In reverse phase chromatography, the stationary phase is made

  1. non-polar
  2. polar
  3. either non-polar or polar
  4. none of these

Answer : 1

Question 5 : Ion exchange chromatography is based on the

  1. electrostatic attraction
  2. electrical mobility of ionic species
  3. adsorption chromatography
  4. partition chromatography

Answer : 1

Question 6 : 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

Answer : 1