Question Detail

CHM 102 Isolation and Purification of Organic Compounds Objective Question
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Question

What does a low Rf value indicate in TLC?
Options
A The compound is very nonpolar
B The compound has a high affinity for the stationary phase (polar)
Correct Answer
C The compound has a high affinity for the mobile phase
D The compound is impure
Correct Answer

Option B is the correct answer.

Detailed Explanation

A low Rf value means the compound traveled a short distance, indicating strong adsorption to the stationary phase (polar silica gel) and weak interaction with the mobile phase.

Hint

Low Rf = stuck to stationary phase.

Question Info

Course: CHM 102
Topic: Isolation and Purification of Organic Compounds
Type: Objective
Difficulty: Not specified
Question 521 of 1999
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