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Friday, 9 October

JEE Main 2022 · ChemistryMultiple choiceOtherEasyConceptual

JEE Main 29 June 2022, Shift 1, Chemistry Q62

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

Which of the following statements are correct ? (A) The electronic configuration of Cr is [Ar] 3d5 4s13d^5\,4s^1. (B) The magnetic quantum number may have a negative value. (C) In the ground state of an atom, the orbitals are filled in order of their increasing energies. (D) The total number of nodes are given by n−2n - 2. Choose the most appropriate answer from the options given below :
  1. (1)(A), (C) and (D) only
  2. (2)(A) and (B) only
  3. (3)(A) and (C) only
  4. (4)(A), (B) and (C) onlyOfficial answer

Official answer

Option 4

NTA final key (2022 Session 1).

Chapter
Structure of Atom
Topic
Quantum Numbers
Idea tested
Anomalous Electron Configurations

Same idea in other shifts

Asked 3× in all
  1. 5 Apr 2026, Shift 1 · Q53Identify the correct statements from the following : A. Heisenberg uncertainty principle is applicable to electrons. B. The size of 2px2p_x…EasyOther
  2. 4 Apr 2025, Shift 2 · Q51Consider the ground state of chromium atom (Z=24)(Z=24). How many electrons are with Azimuthal quantum number l=1l=1 and l=2l=2 respectively ?EasySingle correct

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.