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JEE Main 2025 · ChemistryMultiple choiceSingle correctEasyCalculation

JEE Main 3 April 2025, Shift 2, Chemistry Q52

Question 52 of 75 in this shift, Chemistry question 2 of 25, Section A.

For electrons in '2s' and '2p' orbitals, the orbital angular momentum values, respectively are :

(1) $0$ and $\sqrt{2}\,\frac{h}{2\pi}$ Official answer
(2) $\frac{h}{2\pi}$ and $\sqrt{2}\,\frac{h}{2\pi}$
(3) $\sqrt{2}\,\frac{h}{2\pi}$ and $0$
(4) $0$ and $\sqrt{6}\,\frac{h}{2\pi}$

Official answer

Option 1

NTA final key.

Chapter: Structure of Atom
Topic: Quantum Numbers
Idea tested: Orbital and Spin Angular Momentum

Same idea in other shifts

Asked 2× in all

13 Apr 2023, Shift 2 · Q83The orbital angular momentum of an electron in 3s orbital is $\frac{xh}{2\pi}$ . The value of $x$ is ______ (nearest integer)EasyNumerical value

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.