JEE Main 2021 — Surface Chemistry Question with Solution
From: JEE Main 2021 (Online) 17th March Evening Shift
Question
For the coagulation of a negative sol, the species below, that has the highest flocculating power is :
Choose an option
Show full solutionCorrect option: B
Correct answer
BBa2+
Step-by-step explanation
For a negative sol, a positive ion is required for flocculation.
The greater the valence of the flocculating ion added, the greater is its power to cause
precipitation. This is called Hardy-Schulz law.
So, Ba+2 has highest flocculating power.
So, Ba+2 has highest flocculating power.
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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.