What Is the Dominant Product When an Alkene Reacts with H2 and Pt?

[Soaring Crane]

Homework Statement

An alkene


H---C=C---F
____|_|
___Cl__I

reacts with H2 in the presence of Pt. What will the dominant product be?

Homework Equations

See below.

The Attempt at a Solution

Syn addition will occur, so the hydrogen atoms will either be in the front or in the back. One chiral center will result. One product will be notated as S and the other as R; thus, a racemic mixture will form?

Thank you.

 

[chemtopper]

Hi
Yes it is syn addition and 2H be added on the same face.So addition can take place from the top or from the bottom 50% chances of each . This will give you equal amount of RS and hence racemic mixture.
Your answer is perfect.