MolSynapsequestion bank
MolSynapse / Question bank / Structural Identification and Practical Organic Chemistry / Distinguishing tests for functional groups
JEE Main levelSingle correct optionDifficulty 2 of 3si002

But-1-yne and but-2-yne can be distinguished by

  1. Aammoniacal silver nitrate
  2. Bcold dilute alkaline
  3. Chydrogen over Ni catalyst
  4. D

Answer: A

But-1-yne is a terminal alkyne and gives a white precipitate of silver butynide; but-2-yne does not. Both decolourise bromine in and alkaline permanganate, and both are hydrogenated to butane.
Practice Structural Identification and Practical Organic Chemistry More on Distinguishing tests for functional groups
Previous questionNext question

More questions on Distinguishing tests for functional groups