Inorganic Chemistry

Lanthanide Contraction: The term "Lanthanide contraction" describes the progressive decrease in the atomic and ionic sizes of the elements in the lanthanide series. This phenomenon is attributed to the ineffective shielding of the nuclear charge by the 4f electrons.
Reaction of Acidified with : This reaction illustrates the oxidizing power of potassium dichromate in an acidic medium, where it converts hydrogen sulfide to sulfur.

Interhalogen compounds are molecules formed by the combination of two different halogens.
These compounds have the general formula , where .
The reaction of chlorine with dry slaked lime produces bleaching powder:

Potassium dichromate is prepared from chromite ore through the following
steps: 1. Roasting with Sodium Carbonate:
2. Conversion to Dichromate:
3. Formation of Potassium Dichromate: