Q.

To distinguish between propene and propyne, the reagent required is 

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a

Ammoniacal  AgNO3 solution

b

Schiff’s reagent

c

Grignard reagent

d

Lucas reagent

answer is D.

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Detailed Solution

  • Ammoniacal silver nitrate test can be used to distinguish between propene and propyne. Because propyne possesses an acidic hydrogen, it reacts with ammoniacal silver nitrate easily and produces a white precipitate, in contrast to propene, which does not. 
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