Ammonium sulphate reacts with one mole MnO2 in acidic medium in a reaction to give MnSO4 and (NH4)2S2O8 which are correct statement regarding the above reaction? (1)n factor of (NH4)2SO4 is 1 (2)moles of (NH4)2SO4 reacted is 2 (3)n factor of MnO2 is 2 (4)n factor of MnO2 is 1