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Saturday, 31 October

JEE Main 2026 · ChemistryMultiple choiceSingle correctMediumConceptual

JEE Main 6 April 2026, Shift 1, Chemistry Q54

Question 54 of 75 in this shift, Chemistry question 4 of 25, Section A.

The pairs among A=[SO32−,CO32−]\mathrm{A}=\left[\mathrm{SO_3^{2-},CO_3^{2-}}\right], B=[O22−,F2]\mathrm{B}=\left[\mathrm{O_2^{2-},F_2}\right], C=[CN−,CO]\mathrm{C}=\left[\mathrm{CN^-,CO}\right], D=[NH3,H3O+]\mathrm{D}=\left[\mathrm{NH_3,H_3O^+}\right] and E=[MnO42−,CrO42−]\mathrm{E}=\left[\mathrm{MnO_4^{2-},CrO_4^{2-}}\right] that do not have similar Lewis dot structure are
  1. (1)A, B and E
  2. (2)A and EOfficial answer
  3. (3)B, C and D
  4. (4)C and D

Official answer

Option 2

NTA final key.

Chapter
Chemical Bonding and Molecular Structure
Topic
VSEPR Theory
Idea tested
Isoelectronic and Isostructural Principle

Same idea in other shifts

Asked 2× in all
  1. 29 Jun 2022, Shift 2 · Q63Consider the species CH4\mathrm{CH_4}, NH4+\mathrm{NH_4^{+}} and BH4−\mathrm{BH_4^{-}}. Choose the correct option with respect to the there…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.