JEE Main 2023 — Surface Chemistry Question with Solution
From: JEE Main 2023 (Online) 31st January Evening Shift
Question
Match List I with List II
| LIST I | LIST II | ||
|---|---|---|---|
| A. | Physisorption | I. | Single Layer Adsorption |
| B. | Chemisorption | II. | |
| C. | III. | Chromatography | |
| D. | Analytical Application or Adsorption | IV. | Heterogeneous catalysis |
Choose the correct answer from the options given below:
Choose an option
Show full solutionCorrect option: C
Correct answer
CA - II, B - I, C - IV, D - III
Step-by-step explanation
(A) Physisorption = 20 – 40 kJ/mol and
Chemisorption = 80 – 240 kJ/mol
(B) Physisorption is multi-layered and chemisorption is unimolecular layered.
(C) In heterogeneous catalysis, medium and catalyst are in different phases.
(D) Chromatography uses adsorption to purify/separate mixtures.
(B) Physisorption is multi-layered and chemisorption is unimolecular layered.
(C) In heterogeneous catalysis, medium and catalyst are in different phases.
(D) Chromatography uses adsorption to purify/separate mixtures.
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