2-butene and butyne can be distinguished by their reaction with:
Ammonical solution of Cu2Cl2
Ammonical solution of AgNO3
Alkaline solution of KMnO4
None of these
A
Ammonical solution of AgNO3
B
Alkaline solution of KMnO4
C
Ammonical solution of Cu2Cl2
D
None of these
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Solution
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Copper Acetylide is obtained as a red precipitate when a terminal alkyne is passed through an ammoniacal solution of cuprous chloride.
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