Consider the following:Br₂+SO₂+2H₂Ol→2Br-+SO₄+4H+In this redox reaction, the chemical species SO₂ is______.
a) oxidized and the oxidation number of sulphur does not change.
b) reduced and the oxidation number of oxygen decreases.
c) oxidized and the oxidation number of sulphur decreases.
d) reduced and the oxidation number of oxygen increases.