Question

Is the S-H bond in Hydrogen sulphide non polar covalent, polar covalent or Ionic and Why?

Answer 1

Polar covalent because electronegativity of Sulphur is higher than hydrogen and hence it attracts the shared electron pair towards itself.

Answer 2

Miles is right. Electronegativities: S = 2.58; H = 2.2
Hence the H-S bond is slightly polar, S = slightly -, H = slightly plus.
Because of the polar bonds, and the shape of the molecule, H2S is a polar molecule 9 but not as polar as H2O).