Which reagent can be used to distinguish between 1-butyne and 2-butyne?
A
alc.KOH
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B
alc.KMnO4
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C
Br2 water
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D
Ag+
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Solution
The correct option is DAg+ Ammonical silver nitrate is used to distinguish between end alkyne and other alkyne as it reacts with acidic hydrogen. Only end alkyne have acidic hydrogen so it reacts with 1-butyne only.