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The standard reduction potentials for four half-cells at 298 K are given in Table 1. Table 1 Half-cell equation 2H* (ag) + O2 (g) + 2e H2O2 (aq) H;O2 (aq) + 2H* (aq) + 2e 2H2O (I) + 2CI (aq) MnO2 (s) + 4H" (aq) + 2e – E®V +0.68 +1.77 Cl2 (g) + 2e +1.36 Mn* (aq) +2H2O (1) +1.22 In which of the following mixture there is NO effervescence observed? А. Н.О:(ад) + Cl- (g) B. acidified H,O2+ MnO2 (s) С. NaCI (aq) + аcidified H2O2 (aq) D. NaCl (aq) + acidified MnO2 (s)

The standard reduction potentials for four half-cells at 298 K are given in Table 1. Table 1 Half-cell equation 2H* (ag) + O2 (g) + 2e H2O2 (aq) H;O2 (aq) + 2H* (aq) + 2e 2H2O (I) + 2CI (aq) MnO2 (s) + 4H" (aq) + 2e – E®V +0.68 +1.77 Cl2 (g) + 2e +1.36 Mn* (aq) +2H2O (1) +1.22 In which of the following mixture there is NO effervescence observed? А. Н.О:(ад) + Cl- (g) B. acidified H,O2+ MnO2 (s) С. NaCI (aq) + аcidified H2O2 (aq) D. NaCl (aq) + acidified MnO2 (s)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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13. The standard reduction potentials for four half-cells at 298 K are given in Table 1. Table 1 Half-cell equation E/V |2H* (ag) + O2 (g) + 2e H2O2 (aq) Н.О-(аq) + 2H" (аq) + 2e —> 2H-0 () Cl2 (g) + 2e MnO2 (s) + 4H" (aq) + 2e". +0.68 +1.77 → 2Cl (aq) +1.36 Mn* (aq) +2H20 (I) +1.22 In which of the following mixture there is NO effervescence observed? А. Н-О: (аq) + Сle (g) B. acidified H202+ MnO2 (s) C. NaCI (aq) + acidified H2O2 (aq) D. NaCI (aq) + acidified MnO2 (s)
Transcribed Image Text:13. The standard reduction potentials for four half-cells at 298 K are given in Table 1. Table 1 Half-cell equation E/V |2H* (ag) + O2 (g) + 2e H2O2 (aq) Н.О-(аq) + 2H" (аq) + 2e —> 2H-0 () Cl2 (g) + 2e MnO2 (s) + 4H" (aq) + 2e". +0.68 +1.77 → 2Cl (aq) +1.36 Mn* (aq) +2H20 (I) +1.22 In which of the following mixture there is NO effervescence observed? А. Н-О: (аq) + Сle (g) B. acidified H202+ MnO2 (s) C. NaCI (aq) + acidified H2O2 (aq) D. NaCI (aq) + acidified MnO2 (s)
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