Question

Does `H_2O` have a greater dipole moment than `H_2S`?

Answer 1

`"My word.........."`

Explanation:

This site reports the dipole moment of water at `1.8546*"Debye"`.

And this site reports the dipole moment of hydrogen sulfide at `0.97*"Debye"`.

Of course, you don't have to remember these values, but you might be expected to interpret them rationally. Oxygen is more electronegative than sulfur, and thus there should be a greater polarization of electron density, a greater charge separation, in the water molecule as compared to the hydrogen sulfide molecule.