SHAPE OF WATER MOLECULE (H2O), SHAPES OF THE MOLECULES CONTAINING FIVE ELECTRON PAIRS
SHAPE OF WATER MOLECULE (H 2 O): In water oxygen is the central atom. It has four pairs of electrons in its valence shell out of these two are bond pairs and two are lone pairs of electrons. These four electron pairs are arranged towards the corners of a regular tetrahedron. The two lone pairs occupy more space than the two bond pairs and generate greater repulsion not only between themselves but also on the two bond pairs. As a result bond pairs cp me closer and bond angle is 104.5 0 . Chlorine is more electronegative than hydrogen. The bond pair of the C-H bond will be closer to the central carbon atom in CH 4 compared to the distance of the bond pair of the C-CL bond from the carbon atom in CH 3 CL. As a result, the repulsion exerted by the bond pair of the C-CL bond on the bond pairs of the three C-H bonds in CH 3 CL is less. Therefore the bond angle increases. SHAPES OF THE MOLECULESCONTAINING FIVE ELECTRON PAIRS : ...