Engineering Chemistry Questions and Answers – Column Chromatography

This set of Engineering Chemistry Multiple Choice Questions & Answers (MCQs) focuses on “Column Chromatography”.

1. Column chromatography is based on the principle of _______________
a) Ion-exchange
b) Exclusion principle
c) Differential adsorption
d) Absorption
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2. Arrange the following compounds in order of their increasing adsorption tendencies.
a) Cellulose >> starch >> calcium carbonate >> alumina
b) Cellulose >> starch >> alumina >> charcoal
c) Charcoal >> cellulose >> alumina >> starch
d) Calcium carbonate >>; alumina >> starch >> cellulose
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3. What is the factor responsible for the separation in column chromatography?
a) Polarity differences between the solvent
b) Polarity differences between the solute
c) Polarity indifference between the solvent
d) Polarity indifference between the solute
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4. Select the correct statement from the following options.
a) The lesser the polarity of solute, more strongly it will be adsorbed on a polar surface
b) The greater the polarity of solute, more weakly it will be adsorbed on a polar surface
c) The greater the polarity of solute, more strongly it will be adsorbed on a polar surface
d) All of the mentioned option
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5. The correct order of increasing strength of adsorption is ____________
a) Alkanes >> Esters >> Aldehydes >> Phenols >> Ketones
b) Aldehydes >> Phenols >> Ketones >> Esters >> Alkanes
c) Aldehydes >> Ketones >> Esters >> Alkanes >> Phenols
d) Alkanes >> Esters >> Ketones >> Aldehydes >> Phenols
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6. The components of the mixture in column chromatography are eluted in order of ____________
a) Increasing polarity and decreasing distribution ratio
b) Increasing polarity and increasing distribution ratio
c) Decreasing polarity and increasing distribution ratio
d) Decreasing polarity and decreasing distribution ratio
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7. The elution power of a solvent is determined by ____________
a) Its overall polarity
b) The polarity of the stationary phase
c) The nature of the sample components
d) All of the mentioned
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8. Which of the following is separated through column chromatography?
a) Chlorophyll and carotenoids
b) Inorganic cations or complexes
c) Sugar derivatives
d) Amino acids formed by hydrolysis of a protein molecule
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9. The mixture of petroleum ether and benzene is used in the elution ratio of ____________
a) 1 : 2
b) 1 : 5
c) 1 : 9
d) 1 : 12
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10. Chloroform fraction is eluted from the column by passing chloroform through the column which acts as ____________
a) Eluter
b) Eluant
c) Elution
d) None of the mentioned option
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Sanfoundry Global Education & Learning Series – Engineering Chemistry.

To practice all areas of Engineering Chemistry, here is complete set of 1000+ Multiple Choice Questions and Answers.