13. The standard reduction potentialsfor four half-cells at 298 K are givenin Table 1. *Table 1Half-cell equationH2O2 (aq)E®V2H* (aq) + O2 (g) + 2eН2О2 (ад) + 2H' (аq) + 2е' — 2H20 (DCh(g) + 2e –MnO2 (s) + 4H* (aq) + 2e Mn2* (aq) +2H2O (I)+0.68+1.77→ 2CI (aq)+1.36+1.22In which of the following mixture there is NO effervescence observed?A. H2O2 (aq) + Cl2 (g)B. acidified H2O2+ MnO2 (s)C. NaCl (aq)+ acidified H2O2 (aq)D. NaCl (ag) + acidified MnO2 (s)

Correct Answer is (D) where there is no effervescence of gas. In (A), (B) and (C), all case there…

Answered: A. H2O2 (aq) + Cl2 (g) B. acidified…

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A. H2O2 (aq) + Cl2 (g) B. acidified H2O2+ MnO2 (s) C. NaCl (aq) + acidified H2O2 (aq D. NaCl (ag) + acidified MnO2 (s)

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

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Question

13. The standard reduction potentials
for four half-cells at 298 K are given
in Table 1. *
Table 1
Half-cell equation
H2O2 (aq)
E®V
2H* (aq) + O2 (g) + 2e
Н2О2 (ад) + 2H' (аq) + 2е' — 2H20 (D
Ch(g) + 2e –
MnO2 (s) + 4H* (aq) + 2e Mn2* (aq) +2H2O (I)
+0.68
+1.77
→ 2CI (aq)
+1.36
+1.22
In which of the following mixture there is NO effervescence observed?
A. H2O2 (aq) + Cl2 (g)
B. acidified H2O2+ MnO2 (s)
C. NaCl (aq)+ acidified H2O2 (aq)
D. NaCl (ag) + acidified MnO2 (s)

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