JEE Main 2002 — Surface Chemistry Question with Solution
From: AIEEE 2002
Question
Alum helps in purifying water by :
Choose an option
Show full solutionCorrect option: C
Correct answer
Ccoagulating the mud particles
Step-by-step explanation
Alum furnishes ions which bring about coagulation of negatively charged clay particles, bacteria etc.
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This is a previous-year question from JEE Main 2002, 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.