Final answer:
The Lewis structure for H₂O shows that the water molecule has a bent shape due to its tetrahedral electron-pair geometry and the presence of two lone pairs on the oxygen atom. The correct option is 2.
Step-by-step explanation:
Based on the Lewis structure for H₂O, it can be concluded that the molecule has a bent shape. In the water molecule, there are four regions of electron density around the central oxygen atom due to two bonded pairs (with hydrogen atoms) and two lone pairs of electrons.
This results in a tetrahedral electron-pair geometry. However, due to the presence of the two lone pairs, the molecular structure is bent, not linear or trigonal planar. This bent geometry creates a polar molecule with a separation of charge, resulting in a net dipole towards the oxygen atom, making water a polar substance.