NEET UG 2020 · Chemistry · Question 91
NEET 2020 Chemistry, question 91
Question 91 of the NEET 2020 paper (code E1) is a Chemistry question from Chemical Bonding and Molecular Structure. Its idea, Existence of Diatomic Species, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q91 · Chemistry
Identify a molecule which does not exist.
- 1Official answer
- 2
- 3
- 4
Official answer: option 1 · NTA final answer key
Same idea
The only question on Existence of Diatomic Species
No other NEET paper from 2017–2026 tested this exact idea.
Existence of Diatomic Species: every question and how it was framed
The chapter
Chemical Bonding and Molecular Structure in ten years of NEET
24 questions from 2017–2026, asked in 10 of 10 papers, about 2.3 a paper. Molecular Orbital Theory alone had 8.