In the given reaction,

xBrO3-+ yCr+3 + zH2Br2 + CrO42- + H+

The coefficients x, y, and z are respectively-

1. 6, 10, 11

2. 6, 10, 20

3. 6, 8, 22

4. 6, 10, 22

Subtopic:  Oxidizing & Reducing Agents | Balancing of Equations | Application of Electrode Potential |
 59%
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Consider the given data:

EFe3+/Fe2+=0.77; EI-/I2= -0.54
EAg+/Ag=0.80; ECu/Cu2+= -0.34
EFe3+/Fe2+=0.77; ECu/Cu2+= -0.34
EAg/Ag+=-0.80; EFe3+/Fe2+=0.77

Using the electrode potential values given above, identify the reaction which is not feasible:

1. Fe3+(aq) and I- aq)
2. Ag+(aq) and Cu(s)
3. Fe3+(aq) and Cu(s)
4. Ag(s) and Fe3+(aq)

Subtopic:  Application of Electrode Potential |
 61%
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In the following reaction

Al + Fe3O4 Al2O3 + Fe

The total number of electrons transferred will be-

1. 6

2. 8

3. 8/3

4. 24

Subtopic:  Application of Electrode Potential |
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