1) If stoichiometric quantites of KMnO4 and K2Cr2O7 mixture is added for the oxidation of Fe2+ to Fe3+ in acidic medium , then Fe2+ will be oxidised A) equally by KMnO4 and K2Cr2O7 B) more by KMnO4 C) more by K2Cr2O7 D) no reaction Answer: Option BExplanation: KMnO4+K2Cr2O7 In the process KMnO4 is strong oxidising agent in acidic medium . it oxidises Fe2+ to Fe3+ . K2Cr2O7 is weak oxidising agent in acidic medium