Addition of ${\rm{B}}{{\rm{r}}_2}$ on $cis -{\kern 1pt} {\kern 1pt} {\rm{butene}} - 2$ gives :

Dextro form of 2,3-dibromobutane

Laevo form of 2,3-dibromobutane

JEE CHEMISTRY MCQ: HYDROCARBONS

1 Medium

1 of 1

Application +4 | -1

Addition of

\mathrm{B}{\mathrm{r}_2}

cis -{\kern 1pt} {\kern 1pt} \mathrm{butene} - 2

gives :

View answer and explanation

Correct option: A

A racemic mixture of 2,3-dibromobutane

Option A (A racemic mixture of 2,3-dibromobutane) is correct because the addition of Br2 to cis-butene-2 results in anti-addition, leading to a racemic mixture.

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