JEE Main 2023 — Surface Chemistry Question with Solution
From: JEE Main 2023 (Online) 13th April Evening Shift
Question
Given below are two statements, one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The diameter of colloidal particles in solution should not be much smaller than wavelength of light to show Tyndall effect.
Reason R : The light scatters in all directions when the size of particles is large enough.
In the light of the above statements, choose the correct answer from the options given below:
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
(a) The diameter of the dispersed particle is not much smaller than the wave length of light used.
(b) Refractive indices of dispersed phase and dispersion medium differ greatly in magnitude.
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This is a previous-year question from JEE Main 2023, covering the Surface Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.