Two hydrogen atoms must be given prochirality in each of the two chiral centers.
The figure below illustrates all of these details:
Why does hydrogen exist as H2 and not as H?
As a result, when two hydrogen atoms bind, they share electrons. The term for this is covalent bonding. In your forthcoming classes, you will receive a detailed introduction to it.
Pro r and Pro s are what?
Enantiotopic or diastereotopic atoms or groups on a prochiral center in a molecule are referred to as pro-R and pro-S if one of them is replaced by an achiral ligand with a higher priority than the other in accordance with the CIP rule, converting the prochiral center without affecting the priority of the remaining ligands.
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