MCAT Organic Chemistry Question 178: Answer and Explanation
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Question: 178
13. The gas eluent in gas chromatography and the liquid eluent in paper chromatography are examples of which component of these systems?
- A. Stationary phase
- B. Mobile phase
- C. Column
- D. Fraction
Correct Answer: B
Explanation:
Each of these is the mobile phase of the system, in which the solutes are dissolved and move. The stationary phase in gas chromatography is usually a crushed metal or polymer; the stationary phase in paper chromatography is paper.