Types of Chromatography and Column Chromatography Phases
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Questions and Answers

What is the purpose of the stationary phase in column chromatography?

  • To support the stationary phase using an inert backing
  • To monitor the progress of a reaction
  • To carry the sample through the silica powder
  • To separate the components of a mixture (correct)

In column chromatography, what is the role of the mobile phase?

  • To fill the column with silica powder
  • To carry the sample through the silica powder (correct)
  • To monitor the progress of a reaction
  • To obtain well-defined, well-separated spots

What is the main goal of Thin Layer Chromatography (TLC)?

  • To obtain well-defined, well-separated spots (correct)
  • To monitor the progress of a reaction
  • To separate the components of a mixture
  • To purify small amounts of a compound

What is the purpose of pouring solvent into the top of the column in column chromatography?

<p>To carry the sample through the silica powder (D)</p> Signup and view all the answers

Why is Thin Layer Chromatography (TLC) considered an analytical tool widely used?

<p>Due to its simplicity and relatively low cost (C)</p> Signup and view all the answers

What determines the speed at which a compound migrates in TLC?

<p>Different affinities for mobile and stationary phases (D)</p> Signup and view all the answers

What is the main function of the mobile phase in chromatography?

<p>Separating the components in the mixture (B)</p> Signup and view all the answers

In column chromatography, how does the separation of components occur?

<p>By the distribution of analyte between mobile and stationary phases (B)</p> Signup and view all the answers

What type of phase mainly remains fixed and does not move in chromatography?

<p>Solid phase (C)</p> Signup and view all the answers

Which type of chromatography technique commonly uses a liquid mobile phase?

<p>Thin layer chromatography (TLC) (B)</p> Signup and view all the answers

How can you distinguish between the stationary and mobile phases in chromatography?

<p>Stationary phase does not move, while mobile phase travels over or through it (C)</p> Signup and view all the answers

What is the key factor driving separation in chromatographic techniques?

<p>The physical properties of the mixture (A)</p> Signup and view all the answers

What is the role of the mobile phase in column chromatography?

<p>Acts as a developing agent (D)</p> Signup and view all the answers

Which of the following characteristics should the stationary phase possess in column chromatography?

<p>Uniform shape and size particles (D)</p> Signup and view all the answers

What is the primary function of the eluting agent in column chromatography?

<p>Removing separated components from the column (A)</p> Signup and view all the answers

In thin layer chromatography (TLC), what is analogous to the stationary phase in column chromatography?

<p>Thin layer of adsorbent material (A)</p> Signup and view all the answers

What role does the mobile phase play in thin layer chromatography (TLC)?

<p>Develops bands of separated components (A)</p> Signup and view all the answers

Which feature distinguishes column chromatography from other separation techniques?

<p>Utilization of a mobile phase (C)</p> Signup and view all the answers

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