Although geometries of NH_(3) and H_(2)O molecules are distorted terahedral bond angle in water is less than that of ammonia. Discuss.

Although geometries of NH_(3) and H_(2)O molecules are distorted terah

1.	Although geometries of NH_(3) and H_(2)O molecules are distorted terahedral bond angle in water is less than that of ammonia. Discuss.
Answer» Solution :In `NH_(3)` on N only one lone pair and THREE N - H bonding pair are present so it is `AB_(3)`E type molecule. In `H_(2)`O one lone pair so due to repulsion it has trigonal pyramidal SHAPE and H - N - H bond angle is `107^(@)` while in `H^(2)`O due to repulsion of two lone pair `H_(2)`O has BENT shape and bond angle is `10.5^(@)`.