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Friday, 9 October

JEE Main 2026 · ChemistryMultiple choiceOtherMediumDiagram reading

JEE Main 8 April 2026, Shift 2, Chemistry Q64

Question 64 of 75 in this shift, Chemistry question 14 of 25, Section A.

The total number of aromatic compounds/species from the following is [figures: p-benzoquinone; tropylium cation (cycloheptatrienyl cation); phenanthrene; 1,2-dihydronaphthalene (a benzene ring fused to a ring with one CH2-CH2 unit and one C=C); cyclobutene-type ring bearing two positive charges (cyclobutadiene dication drawn with one double bond and two ⊕\oplus at adjacent carbons); cyclohexadienyl anion (cyclohexadiene ring with one ⊖\ominus on the sp3 carbon)]

The figure, in words

Six structures drawn in two rows: p-benzoquinone (O at top and bottom of a 6-ring with two C=C); a 7-membered ring with three C=C and one carbon bearing a plus charge (tropylium); phenanthrene; a bicyclic ring system with one benzene ring fused to a ring with a CH2-CH2 unit and one C=C (dihydronaphthalene); a 4-membered ring with one C=C and two plus charges on the other two carbons; a 6-membered ring with two C=C and a minus charge on the remaining carbon.
  1. (1)6
  2. (2)4
  3. (3)3Official answer
  4. (4)5

Official answer

Option 3

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
Aromatic Hydrocarbons
Idea tested
Huckel's Rule (4n+2)

Same idea in other shifts

Asked 3× in all
  1. 2 Apr 2025, Shift 1 · Q65Designate whether each of the following compounds is aromatic or not aromatic.MediumSingle correctHas a figure
  2. 13 Apr 2023, Shift 2 · Q74Given below are two statements : Statement I : Tropolone is an aromatic compound and has 8 π\pi electrons. Statement II : π\pi electrons…HardTwo statements

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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 42 of the 174 JEE Main shifts held from 2017 to 2026.