Question Detail
Question
Which of the following compounds reacts with ammoniacal cuprous chloride to give a precipitate?
Correct Answer
Option B is the correct answer.
Detailed Explanation
1-Butyne (terminal alkyne) reacts with ammoniacal cuprous chloride (Cu2Cl2 in NH4OH) to form a red precipitate (copper acetylide). Alkenes and internal alkynes do not react.
Hint
Which compound is a terminal alkyne?