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Suman Kumar
Benzyne is highly reactive intermediate. it is very difficult to isolate. Responsible for nucleophilic substitution in benzene.
See this
In acetylene triple bond is formed by overlapping of p orbital but in benzyne triple bond is formed by overlapping of sp2 hybrid orbital. So This is abnormal.
yes I got it sir
This bond is very strained & very unstable. Sp2 hybrid orbital can't do effective sidewise overlapping which is needed for pi bond formation