Topic: Paper Chromatography - Separation of Food Dyes A student accidentally started the chromatographic run without covering the beaker with a lid. Which of the following can happen due to that mistake? O a. The solvent will travel faster through the plane O b. All of the above O c. The components will have a better separation due to the action of air O d. Retention factors will be difficult to determine The following are the characteristics of a good mobile phase except: O a. Safe to handle O b. Inert O c. Non-expensive O d. Volatile In paper chromatography, why is it necessary to spot the samples above the solvent level? To enhance the saturation of the chromatographic chamber O b. To prevent premature component separation O c. Both a and b O d. Neither a nor b
Topic: Paper Chromatography - Separation of Food Dyes A student accidentally started the chromatographic run without covering the beaker with a lid. Which of the following can happen due to that mistake? O a. The solvent will travel faster through the plane O b. All of the above O c. The components will have a better separation due to the action of air O d. Retention factors will be difficult to determine The following are the characteristics of a good mobile phase except: O a. Safe to handle O b. Inert O c. Non-expensive O d. Volatile In paper chromatography, why is it necessary to spot the samples above the solvent level? To enhance the saturation of the chromatographic chamber O b. To prevent premature component separation O c. Both a and b O d. Neither a nor b
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Hi! This is a set of three multiple choice questions. Hope you can answer them all. Thank u~
Transcribed Image Text:Topic: Paper Chromatography - Separation of Food Dyes
A student accidentally started the chromatographic run without covering the beaker with a lid. Which of the
following can happen due to that mistake?
O a. The solvent will travel faster through the plane
O b. All of the above
O c. The components will have a better separation due to the action of air
O d. Retention factors will be difficult to determine
The following are the characteristics of a good mobile phase except:
O a. Safe to handle
O b. Inert
O c. Non-expensive
O d. Volatile
In paper chromatography, why is it necessary to spot the samples above the solvent level?
O a. To enhance the saturation of the chromatographic chamber
O b. To prevent premature component separation
O c. Both a and b
O d. Neither a nor b
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