Q.Draw the structure of the following
Orthophosphoric acid

Step 1. Recall section 9.7.7. H3PO4's central phosphorus atom is described as tetrahedral, bonded to one oxygen by a P=O double bond and to three further oxygens, each carrying an ionizable acidic hydrogen (three P-OH groups).

Step 2. Write the structure in words (a drawing cannot be rendered here). Place phosphorus at the centre of a tetrahedron; one corner is a plain oxygen double-bonded to P (P=O); the other three corners are each an -OH group single-bonded to P (three P-OH bonds). All three OH hydrogens can ionize as H+, making the acid triprotic. …

Describing the tetrahedral P=O/3×P-OH structure given in section 9.7.7 in words, since an actual dra …

• Drawing/describing all four oxygens as identical -OH groups (giving four ionizable hydrogens); one oxygen is a plain P=O double b …