Question

The oxidation state of bromine in HOBrO₂ oxoacid is ______.

Options

• +7

• +5

• +3

• +1

Answer 1

The oxidation state of bromine in HOBrO₂ oxoacid is +3.

Explanation:

In HOBrO₂, let the oxidation state of Br be x.

H = +1, each O = –2

So,

+1 + x + 2(−2) = 0 

1 + x − 4 = 0 

x = 4 − 1

x = +3