1.

(ii) C_2O_(4)^(2-)+Cr_(2)O_(7)^(2-) to Cr^(3+)+CO_(2) .

Answer»

SOLUTION :
`3C_2O_(4)^(2-)+Cr_(2)O_(7)^(2-)to 2Cr^(3+)+6CO_(2)+7H_(2)O`
`3C_2O_(4)^(2-)+Cr_(2)O_(7)^(2-)+14H^(+)to 2Cr^(3+)+6CO_(2)+7H_2O`.


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