Question:

Which of the following is the most suitable reagent used to distinguish compound (3) from rest of the compounds? 1. CH3−C≡C−CH32. CH3−CH2−CH2−CH33. CH3−CH2C : CH4. CH3−CH=CH2

Updated On: Jul 15, 2024
  • (A) Bromine in carbon tetrachloride
  • (B) Bromine in acetic acid
  • (C) Alkaline KMnO4
  • (D) Ammoniacal silver nitrate
Show Solution
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The Correct Option is D

Solution and Explanation

Explanation:
Ammoniacal silver nitrate is used to distinguish terminal alkynes groups.But-1-yne reacts with ammoniacal silver nitrate to give a white precipitate. CH3−CH2−C≡CHA(NH3)2(va)(inamm oniacal cilver nitrate )=CH3CH2C≡C−Ag+(s)but-1-yneCH3−C≡C−CH3⟶no reaction  but-2-yne
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