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9. Hydricarbon — Chemistry STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceChemistry9. Hydricarbon1 Mark
MCQ
The reagent which is used to distinguish between propene and propyne is
  • A
    Bromine
  • B
    Alkaline $KMn{O_4}$
  • ✓
    Ammoniacal $AgN{O_3}$
  • D
    Ozone
✓

Answer

Correct option: C.
Ammoniacal $AgN{O_3}$
c
Propene and propyne can be distinguish by using Ammoniacal silver nitrate test. Propyne has an acidic hydrogen due to which it readily react with Ammoniacal silver nitrate gives white precipitate while propene does not give any precipitate.

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