Question

Name the hydrocarbon which forms a red precipitate with ammoniacal solution of copper chloride

Answer 1

C2H2 - Acetylene gives a red precipitate with the ammoniacal solution of cuprous chloride.

Hope this helps! :)

Answer 2

Answer:

Ethyne forms a red precipitate with ammonical solution of copper chloride

Explanation:

Ethyne forms a red precipitate with ammonical solution of copper chloride.

The product thus formed is copper acetylide. It is red in colour.

C2H2 + 2CuCl → Cu2Cl2 + 2 HCl

ethyne copper      copper    hydrochloric acid

            chloride    acetylide