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, k_D distribution constant and V_i internal water volume)

1. V = V₀ + k_DV_i
2. V = V₀/V_i
3. V = V₀ – k_DV_i
4. V/V₀ = k_DV_i

Answer : 1