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Saturday, 31 October

JEE Main 2025 · ChemistryMultiple choiceSingle correctMediumApplication

JEE Main 4 April 2025, Shift 2, Chemistry Q64

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

The IUPAC name of the following compound is : HC≡C−CH2−CH(OH)−CH2−CH=CH2\mathrm{HC\equiv C-CH_2-CH(OH)-CH_2-CH=CH_2}
  1. (1)Hept-1-en-6-yn-4-olOfficial answer
  2. (2)Hept-6-en-1-yn-4-ol
  3. (3)4-Hydroxyhept-1-en-6-yne
  4. (4)4-Hydroxyhept-6-en-1-yne

Official answer

Option 1

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
IUPAC Nomenclature
Idea tested
Alkene vs Alkyne Numbering Tiebreaker

Same idea in other shifts

Asked 2× in all
  1. 31 Aug 2021, Shift 1 · Q43Choose the correct name for compound given below :MediumDiagram basedHas a figure

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.