Question

In the co-ordination compound [Ag(Nh3)2]Cl, O.N. of Ag is +1, that means it needs only 1 electron to get charge neutralized. But in forming the co-ordination sphere, Ag accepts 2 electron pairs from NH3 to form 2 co-ordination bonds. Why?

Answer 1

For better explanation....
But why so?

Answer 2

Same in case of [Cu(en)2]SO4. Here the o.n. of Cu is +2, but makes two pairs of co-ordination bonds with each of the two ethylenediamine molecules. Why?

I guess the previous explanation will be valid for this too. Can anyone explain?

Answer 3

the silver ion is not neutralised the charge on the coordinate ion is positive unity.