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For the following redox reaction the coe...

For the following redox reaction the coefficients of the reactants for balanced reaction are `Cr_2O_7^(2-) + SO_3^(2-) + H^+ rarr Cr^(3+) + SO_4^(2-) + H_2O`

A

`Cr_2O_7^(2-) (1) SO_3^(2-) (2) H^+ (7)`

B

`Cr_2O_7^(2-) (1) SO_3^(2-) (3) H^+ (8)`

C

`Cr_2O_7^(2-) (1) SO_3^(2-) (4) H^+ (7)`

D

`Cr_2O_7^(2-) (1) SO_3^(2-) (5) H^+ (14)`

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