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A red precipitate of copper (I) carbide is formed when am...

A red precipitate of copper (I) carbide is formed when ammonium solution of copper (I) chloride is introduced into

A.

CH₃CH₂CH₂CH₃

B.

CH₂ = CH - CH₂CH₃

C.

HC≡CH

D.

CH₃ - C = C - CH₃

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Correct answer is C

When ethyne is passed through an ammoniacal solution of copper(I) chloride, a red-brown precipitate of copper(I) acetylide is produced. Terminal alkynes also react to form a red-brown precipitate

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