JEE Main 2021 — Surface Chemistry Question with Solution
From: JEE Main 2021 (Online) 24th February Evening Shift
Question
Most suitable salt which can be used for efficient clotting of blood will be :
Choose an option
Show full solutionCorrect option: C
Correct answer
CFeCl3
Step-by-step explanation
According to Hardy-Schulze rule, for negatively charged sol, most (+ve) charged ion is needed for efficient coagulation.
Blood is a negatively charged sol. Hence FeCl3 can be used for blood clotting and it from Fe3+ ion.
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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.