Chemistry XII

Zinc (Zn)

Group IIB (z) = At. No. Zn        30        Zn  = [Ar] 3d104S2; Zn +2 = [Ar] 3d10 Cd       48

Molecularity of a reaction

Molecularity of a reaction is no of atoms, molecules or ions involved in collision to form product for

Rusting

The chemical corrosion of iron by oxidation with moist air to give hydrated ferric oxide is called resting and the produce

Silver Chloride (AgCl)

It occurs in nature as horn silver as ore.   Preparation Agcl is obtained by adding any soluble

Properties of Iron

1. Action of air:- Dry air has no effect on iron but most air forms a brown layer of