Question

What makes hydrogen peroxide a polar molecule?

Answer 1

Each hydrogen peroxide molecule contains `2xxO-H` bonds.

Explanation:

As in water, the `O-H` bonds are polar, i.e there is substantial charge separation. Of course, the `O-O` bond itself is non-polar so that when we assign oxidation states to this molecule, we have `H^(+I)` and `O^(-I)`. Nevertheless, we would rightly predict that hydrogen peroxide is polar.