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Chemistry Question on Hydrocarbons

Which of the following product is formed when acetylene is passed into a solution of cuprous chloride is ammonium chloride ?

A

Vinyl acetylene

B

Benzene

C

Cyclooctatetraene

D

Toluene.

Answer

Vinyl acetylene

Explanation

Solution

Acetylene polymerises in Cu2Cl2/NH4ClCu_2Cl_2/NH_4Cl solution CH≡CH+H−C≡CH−>[Cu2Cl2]CH2=H−C≡CHVinyl acetyleneCH \equiv CH + H-C \equiv CH {->[Cu_2Cl_2]} \underset{\text{Vinyl acetylene}}{CH_2=H-C \equiv CH}