JEE Main 2026 · ChemistryMultiple choiceSingle correctEasyApplication

JEE Main 5 April 2026, Shift 2, Chemistry Q64

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

Identify the correct IUPAC name of hydrocarbon (

x

) containing three primary carbon atoms and with molar mass 72 g mol

^{-1}

(1)1, 1 - Dimethylcyclopropane
(2)2, 2 - Dimethylpropane
(3)2 - MethylbutaneOfficial answer
(4)n-pentane

Official answer

Option 3

NTA final key.

Chapter: Organic Chemistry: Some Basic Principles and Techniques
Topic: Structural Isomerism
Idea tested: Chain Isomerism

Same topic in other shifts

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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.