JEE Main 2026 — General Organic Chemistry Question with Solution
JEE Main 2026 (21 January Shift 2)
Question
Match List - I with List - II.
Choose the correct answer from the options given below :
Choose the correct answer from the options given below :
Choose an option
Show full solutionCorrect option: D
Correct answer
DA-III, B-I, C-IV, D-II
Step-by-step explanation
Analyzing the pairs of compounds in List-I:
A. 2-Methylpropene () and but-1-ene () have the same molecular formula but different carbon skeletons (branched vs straight chain). Thus, they are chain isomers. (A-III)
B. Cis-but-2-ene and trans-but-2-ene are geometrical isomers, which fall under the category of stereoisomers. (B-I)
C. 2-Butanol () and diethyl ether () have the same molecular formula but different functional groups (alcohol vs ether). Thus, they are functional group isomers. (C-IV)
D. But-1-ene and but-2-ene have the same carbon chain and functional group but differ in the position of the double bond (at vs ). Thus, they are position isomers. (D-II)
Matching the pairs: A-III, B-I, C-IV, D-II.
A. 2-Methylpropene () and but-1-ene () have the same molecular formula but different carbon skeletons (branched vs straight chain). Thus, they are chain isomers. (A-III)
B. Cis-but-2-ene and trans-but-2-ene are geometrical isomers, which fall under the category of stereoisomers. (B-I)
C. 2-Butanol () and diethyl ether () have the same molecular formula but different functional groups (alcohol vs ether). Thus, they are functional group isomers. (C-IV)
D. But-1-ene and but-2-ene have the same carbon chain and functional group but differ in the position of the double bond (at vs ). Thus, they are position isomers. (D-II)
Matching the pairs: A-III, B-I, C-IV, D-II.
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This is a previous-year question from JEE Main 2026, covering the General Organic Chemistry chapter of Chemistry. PrepSharp catalogues every PYQ from JEE Main with a verified answer key and step-by-step solution prepared by IIT alumni — so you can search by chapter, topic or year and revise efficiently.