JEE Main Chemistry question

Which of the following compounds, when brominated, turns into meso-2,3-dibromobutane?

(A)cis-2-butene
(B)iso-butane
(C)butane
(D)trans-2-buteneCorrect

Answer: (D)

Solution

Addition of to an alkene proceeds by anti addition (via a bromonium ion intermediate, with the nucleophile attacking from the face opposite the bromonium). Anti addition to trans-2-butene places the two new bromine substituents such that the product has a plane

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-148100