An organic functional group which can likely decolourize ammoniacal silver nitrate is?

A. alkene
B. alkane
C. alkyne
D. alkanol

Correct Answer:

Option C – alkyne

Explanation

Terminal alkynes react with Tollens reagent (ammoniacal silver nitrate solution) to form silver alkynides as a white precipitate, whereas internal alkynes do not react with Tollens reagent.