Chemistry Class 11 NCERT Solutions: Chapter 8 Redox Reactions Part 15

Q: 29. Given the standard electrode potentials,

Equation

Equation

Equation

Arrange these metals in their increasing order of reducing power.

Answer:

The lower the electrode potential, the stronger is the reducing agent. Therefore, the increasing order of the reducing power of the given metals is Equation

Q: 30. Depict the galvanic cell in which the reaction Equation takes place, further show:

(i) which of the electrode is negatively charged,

(ii) the carriers of the current in the cell, and

(iii) individual reaction at each electrode

Answer:

The galvanic cell corresponding to the given redox reaction can be represented as: Equation

(i) Equation electrode is negatively charged because at this electrode, Equation oxidizes to Equation and the leaving electrons accumulate on this electrode.

(ii) Ions are the carriers of current in the cell.

(iii) The reaction-taking place at Equation electrode can be represented as:

Equation

And the reaction-taking place at Ag electrode can be represented as:

Equation

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