Can a black women give birth to a white baby?

Yes she can if there is a white gene in the family

More detail:

A black woman can give birth to a baby that looks white if the child is born an albino. This is when the normal pigments that give the skin its natural color is not present, making the child seem white.

A black woman can also give birth to a baby that looks white if the father is white, and resembles the father more than the mother.