In the conversion Br2 → BrO3^- the oxidation state of bromine changes from

Question

In the conversion

\(Br_2 \to BrO_3^-\)

the oxidation state of bromine changes from

(a) -1 to -1

(b) 0 to -1

(c) 0 to +5

(d) 0 to -5

Answer 1

Correct option is (c) 0 to +5

Since Br₂ molecule is in its natural state and is a neutral molecule. So it has a 0 charge

In case of BrO₃^-, let the charge on Bromine be x

Charge on oxygen = −2

Overall charge = −1

x + (3 × (−2)) = −1

x = +5

∴ Oxidation state of Bromine changes from 0 to +5.