JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 25 July 2022, Shift 1, Chemistry Q81

Question 81 of 90 in this shift, Chemistry question 21 of 30, Section B.

Among the following species

\mathrm{N_2,\ N_2^{+},\ N_2^{-},\ N_2^{2-},\ O_2,\ O_2^{+},\ O_2^{-},\ O_2^{2-}}

the number of species showing diamagnesim is ______ .

Official answer

NTA final key (2022 Session 2).

Chapter: Chemical Bonding and Molecular Structure
Topic: Molecular Orbital Theory
Idea tested: Magnetic Property Prediction

Same idea in other shifts

Asked 9× in all

4 Apr 2024, Shift 1 · Q82Number of molecules/species from the following having one unpaired electron is ________. $\mathrm{O_2}$ , $\mathrm{O_2^{-1}}$ , NO,…MediumNumerical value
9 Apr 2024, Shift 1 · Q82The total number of species from the following in which one unpaired electron is present, is ________.…MediumNumerical value
13 Apr 2023, Shift 1 · Q62In which of the following processes, the bond order increases and paramagnetic character changes to diamagnetic one ?MediumSingle correct
28 Jul 2022, Shift 1 · Q83The number of paramagnetic species among the following is __________.…MediumNumerical value
4 Aug 2021, Shift 1 · Q32Consider the following species $\mathrm{B_2, C_2, S_2, NO, O_2^{2-}}$ Which set represents all paramagnetic species?MediumSingle correct
31 Aug 2021, Shift 2 · Q54According to molecular orbital theory, the number of unpaired electron(s) in $\mathrm{O_2^{2-}}$ is __________.EasyNumerical value
9 Jan 2020, Shift 1 · Q27If the magnetic moment of a dioxygen species is 1.73 B.M, it may be :MediumSingle correct
2 Apr 2017 (offline) · Q42Which of the following species is **not** paramagnetic ?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 108 of the 174 JEE Main shifts held from 2017 to 2026.