NEET UG 2025 · Chemistry · Question 86
NEET 2025 Chemistry, question 86
Question 86 of the NEET 2025 paper (code 45) is a Chemistry question from Organic Chemistry - Some Basic Principles and Techniques. Its idea, Counting Isomers, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 3.
Updated 2026-10-08
Q86 · Chemistry
Total number of possible isomers (both structural as well as stereoisomers) of cyclic ethers of molecular formula is :
- 16
- 28
- 310Official answer
- 411
Official answer: option 3 · NTA final answer key
Same idea
The only question on Counting Isomers
No other NEET paper from 2017–2026 tested this exact idea.
The chapter
Organic Chemistry - Some Basic Principles and Techniques in ten years of NEET
22 questions from 2017–2026, asked in 10 of 10 papers, about 2.1 a paper. Purification, Analysis and Isomerism of Organic Compounds alone had 11.