NEET UG 2022 · Chemistry · Question 91
NEET 2022 Chemistry, question 91
Question 91 of the NEET 2022 paper (code R1) is a Chemistry question from Hydrocarbons. Its idea, Reverse Ozonolysis (Parent Alkene Identification), was asked twice, in 2019 and 2022, across NEET 2017–2026. The NTA final answer key gives option 2.
Updated 2026-10-08
Q91 · Chemistry
Compound X on reaction with followed by Zn/ gives formaldehyde and 2-methyl propanal as products. The compound X is :
- 1Pent-2-ene
- 23-Methylbut-1-eneOfficial answer
- 32-Methylbut-1-ene
- 42-Methylbut-2-ene
Official answer: option 2 · NTA final answer key
Same idea
Reverse Ozonolysis (Parent Alkene Identification), in other papers
NEET asked this idea twice, in 2019 and 2022. The other question below.
- 2019 Q74An alkene "A" on reaction with and gives propanone and ethanal in equimolar ratio. Addition of HCl to alkene "A" gives "B"…One-line MCQ · Medium
Reverse Ozonolysis (Parent Alkene Identification): every question and how it was framed
The chapter
Hydrocarbons in ten years of NEET
25 questions from 2017–2026, asked in 10 of 10 papers, about 2.4 a paper. Hydrocarbons (Alkenes) alone had 12.