JAMB - Chemistry (2001 - No. 28)
In which of the following reactions has the oxidation number of nitrogen increased?
2NO(g) + Br2(l) → 2NOBr(l)
2NO(g) + O2(g) → 2NO2(g)
FeSO4(aq) + NO(g) → Fe(NO)SO4(s)
2NO(g) + Cl2(g) → 2NOCl(l)
Shpjegimi
In option B, the oxidation of Nitrogen increases from +2 to +4, when you calculate the oxidation number.