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Q.
1-Penten-4-yne reacts with bromine at $-80^\circ $ C to produce
NTA AbhyasNTA Abhyas 2022
Solution:
1-Penten-4-yne reacts with bromine at $-80^\circ $ C to produce 4,5-dibromopentyne as follows
$CH_{2}=CH-CH_{2}-C\equiv CH+Br_{2}\overset{- 80 ^\circ }{ \rightarrow }CH_{2}Br-CHBr-CH_{2}-C\equiv CH$