Choose the correct statement(s):

Options

A. 1 mole of `MnO_(4)^(-)` ion can oxidise 10 moless of `Fe^(2+)`ion in acidic medium
B. 1 mole of `Cr_(2)O_(7)^(2-)` ion can oxidise 12 moles of `Fe^(2+)` ion in acidic medium
C. 2 mole of `Cu_(2)S` can be oxidize by 2.6 moles of Mn `O_(4)^(-)` ion in acidic medium.
`(Cu_(2)S toCu^(2+)+SO_(2))`
D. 2 moles of `Cu_(2)S` can be oxidize by 8/3 moles of `Cr_(2)O_(7)^(2-)` ion in acidic medium
`(Cu_(2)S toCu^(2+)+SO_(2))`

Answer

a,b,c