First slide

Alkynes

Question

How many acetylene molecules involved in linear polymerisation to get divinyl acetylene

Moderate

A

2
B

3
C

4
D

5

Solution

$HC \equiv CH + HC \equiv CH \to_{{NH}_{4} Cl}^{{Cu}_{2} {Cl}_{2}} H_{2} C = CH - C \equiv CH + HC \equiv CH \to H_{2} C = CH - C \equiv C - CH = {CH}_{2}$ Divinyl acetylene.

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