JEE Main 2025 — Ionic Equilibrium Question with Solution
JEE Main 2025 (23 Jan Shift 2)
Question
pH of water is 7 at . If water is heated to ., it's pH will :
Choose an option
Show full solutionCorrect option: A
Correct answer
ADecrease
Step-by-step explanation
At , pure water has
As temperature increased, water molecules dissociate more into hydrogen ions ( ) and hydroxide ions .
This increased dissociation leads to slightly decrease in pH .
At
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This is a previous-year question from JEE Main 2025, covering the Ionic Equilibrium 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.