Q42.In chromatography, which of the following statements is incorrect for Rf? (1) Higher Rf value means higher adsorption. (2) The value of Rf cannot be more than one. (3) Rf value depends on the type of chromatography. (4) Rf value of dependent on the mobile phase.
What This Question Tests
This question evaluates the understanding of the retention factor (Rf) in chromatography and the factors that influence its value, particularly the relationship with adsorption.
Concepts Tested
Formulas Used
Rf = (distance travelled by solute) / (distance travelled by solvent)
📚 NCERT Sections This Tests
1.3 — Define The Following Terms:
Chemistry Class 11 · Chapter 1
1.3 Define the following terms: (i) Mole fraction (ii) Molality (iii) Molarity (iv) Mass percentage.
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5.17 What is spectrochemical series? Explain the difference between a weak field ligand and a strong field ligand.
14.2 — Which Of The Statements Given In Exercise 14.1 Is True For P-Type
Physics Class 12 · Chapter 14
14.2 Which of the statements given in Exercise 14.1 is true for p-type semiconductos.
📋 Question Details
- Chapter
- Surface Chemistry
- Topic
- Chromatography
- Year
- 2019
- Shift
- 10 Apr Shift 2
- Q Number
- Q42
- Type
- MCQ
- NCERT Ref
- Class 12 Chemistry Ch 12: Surface Chemistry
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