High electrical conductivity, magnetic property having low magnetic loss and catalytic applications are the most prime features of ferrichromites. The properties of spinel compounds arise from the cationic distribution amongst the tetrahedral A- and octahedral B-sites and depend mainly on the techniques, conditions of preparation, which affect the structure and cation distribution over the tetrahedral A-site and the octahedral B-site. This book which is based on a research study is essential for those in the research, development and designing of oxide materials. The book provides information about synthesis of spinel ferrichromites containing Mg, Zn, Co and Ni ions and their characterization and applications particularly in some simple organic reactions and photocatalysis. It will also be of immense use to researchers helping to bridge the gap in the subject that currently exists between them and research. The book forms an ideal platform for the students working in the field of materials synthesis with its comprehensive coverage, simple style, detailed discussion of procedures and presentation of concise theoretical background.