Question

What does a high RF value mean in paper chromatography?

(a) Substance is very non-polar

(b) Substance is medium non-polar

(c) Substance is polar

(d) Substance is neutral

The question was asked in a national level competition.

I want to ask this question from Absorption Mechanisms in chapter Absorption of Food Processing Unit Operations

Answer 1

Correct option is (b) Substance is medium non-polar

To explain I would say: A high Rf would refer to a substance that is very non-polar where substance moved. A low Rf value would refer to a substance that is very polar.