JEE Main Chemistry · Organic Chemistry: Some Basic Principles and Techniques
Structural Isomerism in JEE Main
Structural Isomerism (Chemistry, Organic Chemistry: Some Basic Principles and Techniques) came 6 times in 6 of the 42 JEE Main shifts Lumi analysed, across 5 distinct ideas. 5 of them came in 2024–26; it was last asked in 2026.
- Questions
- 6
- in 6 shifts
- Ideas asked
- 5
- 1 asked more than once
- Numerical answer
- 2
- 33% of its questions
- Pattern
- Frequent
- last asked 2026
In the shifts Lumi analysed for each year.
Easy 2Medium 3Hard 1
Format
- Numerical value2 Q
- Single correct2 Q
- Two statements1 Q
- Other1 Q
Part of Organic Chemistry: Some Basic Principles and Techniques, which had 91 questions in all. Structural Isomerism accounts for 7% of them. In Lumi's JEE taxonomy it belongs to Organic Chemistry.
Some questions sit in other chapters too: Aldehydes, Ketones and Carboxylic Acids, Hydrocarbons.
Every question
All 6 Structural Isomerism questions
Newest first, each with its options and official answer.
- 2 Apr 2026, Shift 1 · Q72Consider the isomers of hydrocarbon with molecular formula . These isomers do not decolourise …HardNumerical value
- 5 Apr 2026, Shift 2 · Q64Identify the correct IUPAC name of hydrocarbon () containing three primary carbon atoms and with molar mass 72 g mol.EasySingle correct
- 6 Apr 2026, Shift 1 · Q64Given below are two statements: Statement I: 2,6-diethylcyclohexanone and 6-methyl-2-n-propylcyclohexanone are metamers. Statement II:…MediumTwo statements
- 3 Apr 2025, Shift 1 · Q64Identify the correct statements from the following. A. [structure: pentan-3-one (skeletal, C=O at the middle carbon)] and [structure:…MediumOtherHas a figure
- 3 Apr 2025, Shift 2 · Q75The total number of structural isomers possible for the substituted benzene derivatives with the molecular formula is…MediumNumerical value
- 18 Mar 2021, Shift 1 · Q42Compound with molecular formula can show :EasySingle correct