Question

Addition of $Os{O}_4$ to cyclopentene would give a product which is :

• A. achiral
• B. racemic
• C. meso
• D. optically active

Answer 1

The correct option is C meso

As refer to the above image here, $Os{O}_4$ is the reagent used to form diols in presence of $H_{2}O/H^{+}$.

$Os{O}_4$ is the syn addition of diols.