Answer : The formula unit of compound will be, [tex]PbO_2[/tex]
Explanation :
As we know that one atom of oxygen contains (2-) charge and one atom of lead contains (4+) charge. So, to balance the of charges of lead, the 2 oxygen atoms combine with the 1 lead atom. Thus, the compound formed will be, [tex]PbO_2[/tex].
That means, when [tex]Pb^{4+}[/tex] combine with oxygen that is, [tex]O^{2-}[/tex], it gives [tex]PbO_2[/tex] by the criss-cross method.
Criss cross method : It is a method of determining the chemical formula.
The formula unit is a shown below.
