The standard potentials at `298 K` for the following halfreactions are as given ` Zn^(2+) + 2e underset(larr)(rarr) Zn E^o =- 0/ 762 V`. `2 H^+ + 2 Erarr H_2 (g) E^o = 0.000 V` `Cr^(3+) + 3e underset(larr)(rarr) Cr E^o =- 0.740 V` `Fe^(3+) 2e rarr Fe^(2+) E^o =0.772 V` Which of the following is the strongest reducing agent ?A. `Zn`B. CrC. H2D. Fe^2+

The standard potentials at `298 K` for the following halfreactions are

1.	The standard potentials at `298 K` for the following halfreactions are as given ` Zn^(2+) + 2e underset(larr)(rarr) Zn E^o =- 0/ 762 V`. `2 H^+ + 2 Erarr H_2 (g) E^o = 0.000 V` `Cr^(3+) + 3e underset(larr)(rarr) Cr E^o =- 0.740 V` `Fe^(3+) 2e rarr Fe^(2+) E^o =0.772 V` Which of the following is the strongest reducing agent ?A. `Zn`B. CrC. H2D. Fe^2+
Answer» Correct Answer - D higher `E_("reduction")^@` means good oxidizing agent .

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What are elementary reactions ?

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