JEE Main 2021 — Hydrogen Question with Solution
From: JEE Main 2021 (Online) 22th July Evening Shift
Question
The water having more dissolved O2 is :
Choose an option
Show full solutionCorrect option: D
Correct answer
Dwater at 4C
Step-by-step explanation
On heating concentration of O2 in water decreases. So boiling water and water at 80C having less O2 concentration. Polluted water also having less O2 concentration. So water at 4C having maximum O2 concentration.
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This is a previous-year question from JEE Main 2021, covering the Hydrogen 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.