Question

Sum of oxidation states of bromine in bromic acid and perbromic acid is ________

Answer 1

Answer: 12

$HBr{O}_3$ (Bromic acid)
Ox. State of $Br=+5$
$HBr{O}_4$ (per bromic acid)
OX. State of $Br=+7$
Sum of Ox. State $=12$