Question

Reagent used to distinguish between propene and propyne

Answer 1

Answer: Propene is an alkene, whereas propane is an alkane. ... The bromine reacts with and saturates the double bonds in alkenes, and so decolourises

Answer 2

Answer:

Propene and propyne can be determined by using the Ammoniacal silver nitrate test.

Explanation:

• Propene and propyne can be determined by using the Ammoniacal silver nitrate test. Propyne has acidic hydrogen due to which it readily reacts with Ammoniacal silver nitrate and provides white precipitate while propene does not provide any precipitate.
• Propyne exists in terminal alkyne so it provides a white precipitate with ammonical silver nitrate solution but alkene does not. Therefore propene and propyne can be differentiated by ammonical silver nitrate solution.

Hence, Propene and propyne can be determined by using the Ammoniacal silver nitrate test.

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