A) electrophillic addition reaction
B) nucleophillic addition reaction
C) free radical addition reaction
D) electrophillic substitution reaction
Correct Answer: B
Solution :
This reaction is an example of neucleo-phillic addition, in which\[C{{N}^{-}}\]attacks the triple bond of acetylene. \[\underset{CH}{\overset{CH}{\mathop{|||}}}\,\xrightarrow{{}}\underset{{}^{\delta -}CH}{\overset{{}^{\delta +}CH}{\mathop{||}}}\,\xrightarrow{{{H}^{+}}C{{N}^{-}}}\underset{C{{H}_{2}}}{\overset{CHCN}{\mathop{||}}}\,\]
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