Question

The number of stereoisomers obtained by bromination of trans-2-butene is:

• A. 1
• B. 2
• C. 3
• D. 4

Answer 1

The correct option is A 1

If we add halogens on alkenes it is mostly called Anti-addition. Anti addition of $B{r}_2$ on trans alkene gives (or) produces meso compound.

So, here only $1$ stereoisomer is formed

The correct answer is (a)