C6H14 + 6 KBr + 3 Cl2 → 6 CBr + 7 H2 + 6 KCl
This is an oxidation-reduction (redox) reaction:
6 C-7/3 - 20 e- → 6 CI (oxidation)
14 HI + 14 e- → 14 H0 (reduction)
6 Cl0 + 6 e- → 6 Cl-I (reduction)
C6H14 is a reducing agent, C6H14 is an oxidizing agent, Cl2 is an oxidizing agent.