A) 1,4 -dibromobutene
B) 1,2 -dibromobutene
C) 3,4-dibromobutene
D) 2,3-dibromo-2-butene
Correct Answer: A
Solution :
\[\underset{\text{1,3}\,\text{butadiene}}{\mathop{C{{H}_{2}}=CH-CH=C{{H}_{2}}}}\,\xrightarrow{B{{r}_{2}}}\underset{\text{1,4}-\text{di}\,\,\text{bromo}-\text{2}-\text{butene}}{\mathop{\underset{\underset{Br\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}}}\,-CH=CH-\underset{\underset{Br\,\,\,\,}{\mathop{|\,\,\,\,\,\,\,}}\,}{\mathop{C{{H}_{2}}}}\,}}\,\]
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