Oxo Acids of Phosphorus

Chemistry PPTs for Tutors

Oxoacids of Phosphorus

Phosphorus forms following two series of oxoacids-

(1) Phosphorus series                                    

(2) Phosphoric series

In all these oxoacids of phosphorus, the phosphorus atom is sp³ hybridized and remains tetrahedrally surrounded by other atoms. These acids contain at least one P=O and one P-OH. Those oxoacids in which phosphorus has lower oxidation states also contain either P-H bonds or P-P bond, but not both. Here, the hydrogen atoms of the O-H group are ionizable and therefore, are acidic in nature. The number of such hydrogen atoms corresponds to the basicity of the acid. On the other hand, the hydrogen atoms attached directly to the phosphorus atom are non-ionizable and therefore, non-acidic in nature. These hydrogen atoms are responsible for the reducing nature of the acid.

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Important Reference Books

(1) Physics-          (1) Concept of Physics by H.C. Verma

                             (2) Modern’s abc of Objective Physics

(2) Chemistry-     (1) Dr. O.P. Tandon (GRB Publication)

                            (2) Modern’s abc of Objective Chemistry

(3) Biology-         (1) Biology by Trueman 

                            (2) Modern’s abc of Objective Biology

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