Q. Which of the following reagent can distinguish between 1-butyne and 2-butyne?
A) Aqueous $NaOH$
B) Bromine water
C) Fehling’s solution
D) Ammoniacal $AgNO_{3}$
Explanation
(d)
$H_{3}C - CH_{2}C \equiv CH\underset{NH_{4}OH}{\overset{{\ \ \ AgNO}_{3}\ \ }{\rightarrow}}CH_{3}CH_{2}C \equiv CAg$
(1-butyne) (silver-1 butynide)
$H_{3}C - C \equiv C - CH_{3}\underset{NH_{4}OH}{\overset{{\ \ \ AgNO}_{3}\ \ }{\rightarrow}}No\ reaction$
2-butyne
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.