JEE Main 2025 — Structure Of Atom Question with Solution
From: JEE Main 2025 (Online) 3rd April Morning Shift
Question
Choose an option
Show full solutionCorrect option: A
Step-by-step explanation
The postulate that contradicts quantum mechanics is
Option A
“The electron in a H atom’s stationary state moves in a circle around the nucleus.”
In quantum mechanics an electron in a stationary state is described by a delocalized wave‐function (an orbital), not by a definite circular orbit.
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This is a previous-year question from JEE Main 2025, covering the Structure Of Atom 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.