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Saturday, 31 October

JEE Main 2023 · ChemistryMultiple choiceDiagram basedMediumConceptual

JEE Main 13 April 2023, Shift 1, Chemistry Q73

Question 73 of 90 in this shift, Chemistry question 13 of 30, Section A.

Among the following compounds, the one which shows highest dipole moment is

The figure, in words

All four options are structures: (1) two six-membered rings joined by a central C=C; (2) cyclopropanone; (3) two larger rings joined by a central C=C; (4) cyclopropene ring joined by a central C=C to a cyclopentadiene ring.
  1. (1)[figure: two six-membered rings, each with two C=C, joined by a central C=C (bi-cyclohexadienylidene)]
  2. (2)[figure: cyclopropanone (three-membered ring with C=O)]
  3. (3)[figure: two larger rings, each with two C=C, joined by a central C=C]
  4. (4)[figure: three-membered ring with a C=C, joined by a central C=C to a five-membered ring with two C=C]Official answer

Official answer

Option 4

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
Inductive and Electromeric Effects
Idea tested
Inductive Effect on Dipole Moment

Same topic in other shifts

All Inductive and Electromeric Effects questions
  1. 4 Apr 2026, Shift 1 · Q63Increasing order of electron withdrawing power of following functional groups is: a. −CN-\mathrm{CN} b. −COOH-\mathrm{COOH} c.…MediumSingle correct
  2. 5 Apr 2026, Shift 1 · Q63Given below are two statements: Statement I: On the basis of inductive effect, the order of stability of alkyl carbanions is…EasyTwo statements
  3. 4 Apr 2025, Shift 2 · Q63In which pairs, the first ion is more stable than the second ? (A) [figure: 1-methoxycyclohexyl cation] & [figure: 1-methylcyclohexyl…MediumOtherHas a figure
  4. 4 Apr 2024, Shift 1 · Q75Which among the following is incorrect statement ?EasySingle correct
  5. 4 Apr 2024, Shift 2 · Q74Correct order of stability of carbanion is -MediumDiagram basedHas a figure
  6. 30 Jan 2024, Shift 2 · Q73The correct stability order of carbocations isEasySingle 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. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.