Question

Which of the following does not give a white precipitate with $AgN{O}_3$ solution?

• A. Propyne
• B. 1-butyne
• C. 2-butyne
• D. 1-pentyne

Answer 1

Answer: (C)

$1$-alkynes give white precipitate with ammoniacal $AgN{O}_3$ solution, due to the presence of terminal hydrogen.