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The question is to predict the nature of the product of the above reaction that is if they form a racemic mixture, meso, diasteromers, or are structural isomers.

I am aware of the fact that addition of $\ce{H2}$ is a *syn* addition .So it should form a meso compound. However the answer key gives it as a mixture of diastereomers. I am not quite sure if the reaction is strictly selective and some *anti* products are also formed.


  [1]: https://i.sstatic.net/Bll7d.jpg