Final answer:
The correct answer is Water molecule is polar due to its bent molecular structure, resulting in a net dipole with a slightly negative oxygen end and a slightly positive hydrogen side.
Step-by-step explanation:
The correct answer is 2) Water molecule is polar.
Water has a bent molecular structure, which makes it polar. The individual O-H bond dipoles point from the slightly positive hydrogen atoms toward the more electronegative oxygen atom. Due to the bent shape, the dipoles do not cancel each other out, resulting in a separation of charge throughout the entire water molecule. This creates a net dipole, where the oxygen end of the molecule is slightly negative and the hydrogen side is slightly positive.