In basic medium CrO(4)^(2-) reacts with ...

In basic medium `CrO_(4)^(2-)` reacts with `S_(2)O_(3)^(2-)` resulting in the formation of `Cr(OH)_(4)^(ɵ)` and `SO_(4)^(2-)` How many " mL of " 0.1 M `Na_(2)CrO_(4)` is required to react with 40 " mL of " 0.25 M `Na_(2)S_(2)O_(3)`?

16mL

32mL

128mL

42mL

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