1.

The reaction of one mol of bromine with ethyne yields

Answer»

`BrCH_2 - CH_2 BR`
`BrCH = CHBr`
`Br_2 CH - CH Br_2`
`CH_3 - CH_2 Br`

Solution :`H - C-= C - H + 1 Br_2 `
`to H - UNDERSET(Br) underset(|)(C ) underset(Br)underset(|)C - H`


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