Consider the following pairs of electrons (A) (a) $n=3, l=1, m_l=1, m_s=+\frac{1}{2}$ (b) $n=3, l=2, m_l=1, m_s=+\frac{1}{2}$ (B) (a) $n=3, l=2, m_l=-2, m_s=-\frac{1}{2}$ (b) $n=3, l=2, m_l=-1, m_s=-\frac{1}{2}$ (C) (a) $n=4, l=2, m_l=2, m_s=+\frac{1}{2}$ (b) $n=3, l=2, m_l=2, m_s=+\frac{1}{2}$ The pairs of electrons present in degenerate orbitals is/are :

JEE Main 2022 · ChemistryMultiple choiceOtherEasyApplication

JEE Main 24 June 2022, Shift 1, Chemistry Q62

Question 62 of 90 in this shift, Chemistry question 2 of 30, Section A.

Consider the following pairs of electrons (A) (a)

n=3, l=1, m_l=1, m_s=+\frac{1}{2}

(b)

n=3, l=2, m_l=1, m_s=+\frac{1}{2}

(B) (a)

n=3, l=2, m_l=-2, m_s=-\frac{1}{2}

(b)

n=3, l=2, m_l=-1, m_s=-\frac{1}{2}

n=4, l=2, m_l=2, m_s=+\frac{1}{2}

(b)

n=3, l=2, m_l=2, m_s=+\frac{1}{2}

The pairs of electrons present in degenerate orbitals is/are :

(1)Only (A)
(2)Only (B)Official answer
(3)Only (C)
(4)(B) and (C)

Official answer

Option 2

NTA final key (2022 Session 1).

Chapter: Structure of Atom
Topic: Quantum Numbers
Idea tested: Hydrogen vs Multi-Electron Degeneracy

Same topic in other shifts

All Quantum Numbers questions

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.