MCQs on Redox Reaction Which of the compounds can exist together? (a) HgCl2, SnCl2 (b) FeCl3, KI (c) FeCl3, SnCl2 (d) FeCl2, SnCl2 Answer: (d) One mole of ferrous oxalate requires____ moles of MnO4– to get oxidised completely in an acidic medium (a) 0.6 moles (b) 0.4 moles (c) 0.2 …