NEET UG 2025 · Chemistry · Question 76
NEET 2025 Chemistry, question 76
Question 76 of the NEET 2025 paper (code 45) is a Chemistry question from Hydrocarbons. Its idea, Alkyne Structure and Hybridization, was asked only this once in NEET 2017–2026. The NTA final answer key gives option 1.
Updated 2026-10-08
Q76 · Chemistry
Among the given compounds I-III, the correct order of bond dissociation energy of C–H bond marked with * is :
The figure, described in words
Structures: I benzene with starred aromatic C–H; II phenylacetylene (Ph–C≡C–H*) with starred terminal alkyne C–H; III cyclopropene ring with starred C–H on the sp3 CH2 carbon.
- 1II > I > IIIOfficial answer
- 2I > II > III
- 3III > II > I
- 4II > III > I
Official answer: option 1 · NTA final answer key
Same idea
The only question on Alkyne Structure and Hybridization
No other NEET paper from 2017–2026 tested this exact idea.
Alkyne Structure and Hybridization: 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 (Alkynes) alone had 4.