JEE Main 2020 — Structure Of Atom Question with Solution
From: JEE Main 2020 (Online) 2nd September Evening Slot
Question
The number of subshells associated with n = 4
and m = –2 quantum numbers is
Choose an option
Show full solutionCorrect option: B
Correct answer
B2
Step-by-step explanation
For n = 4 possible value of
l = 0, 1, 2, 3.
Only l = 2 and l = 3 can have m = -2
4d & 4f subshell associated with n = 4, m = –2.
Only l = 2 and l = 3 can have m = -2
4d & 4f subshell associated with n = 4, m = –2.
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This is a previous-year question from JEE Main 2020, 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.