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Friday, 9 October

JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 29 January 2024, Shift 1, Chemistry Q82

Question 82 of 90 in this shift, Chemistry question 22 of 30, Section B.

The number of species from the following which are paramagnetic and with bond order equal to one is ________. H2,He2+,O2+,N22−,O22−,F2,Ne2+,B2\mathrm{H_2,He_2^+,O_2^+,N_2^{2-},O_2^{2-},F_2,Ne_2^+,B_2}

Official answer

1

NTA final key.

Same idea in other shifts

Asked 2× in all
  1. 18 Mar 2021, Shift 1 · Q52AX is a covalent diatomic molecule where A and X are second row elements of periodic table. Based on Molecular orbital theory, the bond…MediumNumerical 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.