which of the following reactions does not represent an oxidation of substrate 1) A+ O2 -> A02
2) Fe3+ -> fe2+
3) AH2+B -> A+BH2
4) FE2+ -> Fe3+
which of the following reactions does not represent an oxidation of substrate
1) A+ O2 -> A02
2) Fe3+ -> fe2+
3) AH2+B -> A+BH2
4) FE2+ -> Fe3+
2) Fe3+ -> fe2+
3) AH2+B -> A+BH2
4) FE2+ -> Fe3+