JEE Main 2022ChemistryStructure of AtomEasyMCQ

JEE Main 2022 — Structure of Atom Question with Solution

JEE Main 2022 (29 Jul Shift 2)

Question

Given below are the quantum numbers for 4 electrons.

A. n=3,l=2,m1=1,ms=+12

B. n=4,l=1,m1=0,ms=+12

C. n=4,l=2,m1=-2,ms=-12

D. n=3,l=1,m1=-1,ms=+12

The correct order of increasing energy is

Choose an option

Show full solutionCorrect option: B
Correct answer
BD<A<B<C

Step-by-step explanation

Energy order of sub-shell decided by n+l value.

Greater the n+l value of a sub-shell greater is its energy.

If two sub-shells have same n+l values the orbital with greater principal quantum number has greater energy

A⇒3 d⇒n+l=3+2=5

B⇒4p⇒n+l=4+1=5

C⇒4 d⇒n+l=4+2=6

D⇒3s⇒n+l=3+0=3

D<A<B<C

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About this question

This is a previous-year question from JEE Main 2022, 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.