Three different solutions of oxidising agents `KMnO_(4),K_(2)Cr_(2)O_(7) " and "I_(2)` is titrated separately with 0.158 gm of `Na_(2)S_(2)O_(3)`. If molarity of each oxidising agent is 0.1 M and reactions are :
I.`MnO_(4)^(-)+S_(2)O_(3)^(2-) toMnO_(2)+SO_(4)^(2-)`
II `CrO_(7)^(2-)+S_(2)O_(3)^(2-) to Cr^(3+)+SO_(4)^(2-)`
III. `I_(2)+S_(2)O_(3)^(2-) to S_(4)O_(6)^(2-)+I^(-)`

Options

A. Volume of `KMnO_(4)` used in maximum
B. volume of iodine used in minimum
C. weight of `I_(2)` used in titration is maximum
D. gram equivalent of `Na_(2)S_(2)O_(3)` are same in all the reactions.

Answer

a,b