Question

Which alkene will give optically active diol with Baeyer's reagent ?
(a) 1-butene
(b) Propene
(C) cis-2-butene
(d) trans-2-butene​

Answer 1

Answer:

baeyers reagent follows markonikov addition reaction means an alcohol is added at the most stable site

so , ( see the attachment given below)

Answer 2

Trans-2-butene ​will provide optically active diol with Baeyer's reagent :

Explanation:

• It is the most effective alkene displaying cis/trans-isomerism (moreover acknowledged as (E/Z)-isomerism).
• Due to the lowest warmness of hydrogen trans-2-butene is the most stable.
• In cycloalkenes smaller than cyclooctene, due to the ring strain the cis isomers are extra strong than the trans.

Answer- (d) trans-2-butene is the correct option.