The cell reaction `Cr_2O_7^(2-)(aq)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+7H_2O(l)` is best represented by:A. `Pt(s)|Fe^(2+)(aq),Fe^(3+)(aq)"||"Cr__2O_7^(2-)(aq),Cr^(3+)(aq)|Pt(s)`B. `Pt(s)|Cr_2O_7^(2-)(aq),Cr^(+3)(aq)"||"Fe^(3+)(aq),Fe^(+2)(aq)|Pt(s)`C. `Fe^(2+)(aq)|Fe^(3+)(aq)"||"Cr_2O_7^(2-)(aq)|Cr^(3+)(aq)`D. `Cr_2O_7^(2-)(aq)|Cr^(3+)(aq)"||"Fe^(3+)(aq)|Fe^(2+)(aq)`

The cell reaction `Cr_2O_7^(2-)(aq)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(a

1.	The cell reaction `Cr_2O_7^(2-)(aq)+14H^+(aq)+6Fe^(2+)(aq)to6Fe^(3+)(aq)+2Cr^(3+)(aq)+7H_2O(l)` is best represented by:A. `Pt(s)\|Fe^(2+)(aq),Fe^(3+)(aq)"\|\|"Cr__2O_7^(2-)(aq),Cr^(3+)(aq)\|Pt(s)`B. `Pt(s)\|Cr_2O_7^(2-)(aq),Cr^(+3)(aq)"\|\|"Fe^(3+)(aq),Fe^(+2)(aq)\|Pt(s)`C. `Fe^(2+)(aq)\|Fe^(3+)(aq)"\|\|"Cr_2O_7^(2-)(aq)\|Cr^(3+)(aq)`D. `Cr_2O_7^(2-)(aq)\|Cr^(3+)(aq)"\|\|"Fe^(3+)(aq)\|Fe^(2+)(aq)`
Answer» Correct Answer - A

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What are elementary reactions ?

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