Final answer:
Hydrogen sulfide (H2S) has a polar covalent bond due to the electronegativity difference between hydrogen and sulfur.
Step-by-step explanation:
The type of bond present in hydrogen sulfide (H2S) is a polar covalent bond. In a polar covalent bond, there is an unequal sharing of electrons between the atoms involved in the bond.
The electronegativity difference between hydrogen (H) and sulfur (S) is 0.4, as sulfur has an electronegativity of 2.5 and hydrogen has an electronegativity of 2.1. This difference in electronegativity indicates that the bond is polar covalent.
In a polar covalent bond, the electrons are more strongly drawn towards the atom with a higher electronegativity, creating partial positive and partial negative charges on the atoms involved.