Question

explain of Ammonia (NH3) And water molecule (H2O).​

Answer 1

In H2O there are two lone pairs of electrons whereas in NH3 there are only one lone pair of electron.

there are only one lone pair of electron.In H2O, lone pair-lone pair repulsion takes place whereas in NH3 lone pair-bond pair repulsion takes place.

lone pair-bond pair repulsion takes place.The lone pair-lone pair repulsion is more strong than lone pair-bond pair repulsion.

lone pair-bond pair repulsion takes place.The lone pair-lone pair repulsion is more strong than lone pair-bond pair repulsion.Thus, the bond angle in a water molecule is less than the ammonia molecule.