Although geometries of NH_(3) and H_(2) Omolecules are distorted tetrahedral, bond angle in water is less thenthat of ammonia.Discuss .

Although geometries of NH_(3) and H_(2) Omolecules are distorted tetra

1.	Although geometries of NH_(3) and H_(2) Omolecules are distorted tetrahedral, bond angle in water is less thenthat of ammonia.Discuss .
Answer» Solution :In ` NH_(3)`, there is only one lone pair on N-atom to REPEL the bond pairs whereas in ` H_(2)O` , there are TWO lone pairs on O-atom to repel the bond paris . Hence the repulsions on bond pairs are GREATER in ` H_(2) O `than in ` NH_(3)` andhence the bond angle is LESS.