JEE Main 2021 — Surface Chemistry Question with Solution
From: JEE Main 2021 (Online) 18th March Evening Shift
Question
The charges on the colloidal CdS sol and TiO2 sol are, respectively :
Choose an option
Show full solutionCorrect option: D
Correct answer
Dnegative and positive
Step-by-step explanation
Oxides & Hydroxide sol are positive
so TiO2 is positive sol.
Sulphide sol are negatively charge so CdS is negatively charge sol.
Sulphide sol are negatively charge so CdS is negatively charge sol.
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This is a previous-year question from JEE Main 2021, 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.