Q. Which of the following reagents will be able to distinguish between 1-butyne and 2-butyne?
A) NaNH₂
B) HCl
C) O₂
D) Br₂
Explanation
[Solution from source] 1-Butyne is a terminal alkyne with an acidic ≡C–H and reacts with NaNH₂ to form a sodium acetylide; 2-butyne has no such hydrogen. Br₂ and HCl add to both alkynes, so they cannot tell them apart. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.