Potassium dichromate (K_(2)Cr_(2)O_(7)) is an orange coloured compound, very frequently used in laboratory as an oxidising agent as well as in a redox titration. It is generally prepared from chromit (FeCr_(2)O_(4))ore according to the following reactions: (a) Fusion of chromite ore with sodium carbonate in excess of air. FeCr_(2)O_(4)+Na_(2)CO_(3)+O_(2) to Na_(2)CrO_(4)+Fe_(2)O_(3)+CO_(2) (b) Acidifying filetered sodium chromate solution with sulphuric acid. Na_(2)CrO_(4)+H_(2)SO_(4) to Na_(2)Cr_(2)O_(7)+Na_(2)SO_(4)+H_(2)O (c) Treating sodium dichromate with potassium chloride. Na_(2)Cr_(2)O_(7)+KCl to K_(2)Cr_(2)O_(7)+NaCl Answer the following questions using above information. If the number of moles of reactants available for reactions are: {FeCr_(2)O_(4)=0.25 moles, O_(2)=0.35 moles, Na_(2)CO_(3)=0.60 moles, H_(2)SO_(4)=0.2 mol,es, KCl=0.1 moles}, then the maximum number of moles of K_(2)Cr_(2)O_(7), that can be produced is :