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Question
How will distinguish 1 – butyne and 2 – butyne?
Solution
\[\ce{\underset{\text{2-butyne}}{CH3 - C ≡ C - CH3}->[AgNO3][NH4OH] No reaction}\]
\[\ce{\underset{\text{1 - butyne}}{CH3 - CH2 - C ≡ CH} ->[AgNO3][NH4OH] \underset{\text{Silver acetylide}}{CH3 - CH2 - C ≡ CAg}}\]
1 – butyne reacts with ammoniacal AgNO3 solution it forms white precipitate of silver acetylide but, 2 – butyne doesnot reacts with ammoniacal AgNO3 solution.
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