Which has maximum number of oxo groups ?

Options

A. `H_(2)SO_(4)`
B. `H_(2)SO_(3)`
C. `H_(3)PO_(4)`
D. `H_(3)PO_(4)`

Answer

A

Explanation

M=0 bonds are called oxo bonds in organic compounds `H_(2)SO_(4)` has two S=O bonds, where as `H_(2)SO_(3)` has one S=O bond. `H_3PO_(3)` has one P=O and `H_(3)PO_(4)` also has one P=O bond.