# The electrode potential for Mg electrode varies according to the equation $$E_{Mg^{2+}/Mg}\ = \ E_{Mg^{2+}/Mg}^{o} \ - \ \frac{0.059}{2}log\frac{1}{[Mg^{2+}]}$$ The graph of EMg2+ / Mg vs log [Mg2+] among the following is: 1.    2.   3.    4.

Subtopic:  Nernst Equation |
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The correct statement among the following options is:

 1 Ecell and ∆rG of cell reaction are both extensive properties. 2 Ecell and ∆rG of cell reaction are both intensive properties. 3 Ecell is an intensive property while ∆rG of cell reaction is an extensive property. 4 Ecell is an extensive property while ∆rG of cell reaction is an intensive property.

Subtopic:  Electrode & Electrode Potential |
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The difference between the electrode potentials of two electrodes when no current is drawn through the cell is called:

 1 Cell potential. 2 Cell emf. 3 Potential difference. 4 Cell voltage.
Subtopic:  Electrode & Electrode Potential |
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The incorrect statement about an inert electrode in a cell is:

 1 It does not participate in the cell reaction. 2 It provides a surface either for oxidation or for the reduction reaction. 3 It provides a surface for the conduction of electrons. 4 It provides a surface for redox reaction.

Subtopic:  Electrode & Electrode Potential |
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An electrochemical cell can behave like an electrolytic cell when -

1. Ecell = 0

2. Ecell > Eext

3. Eext > Ecell

4. Ecell = Eext

Subtopic:  Electrolytic & Electrochemical Cell |
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The incorrect statement about the solution of electrolytes is:

 1 Conductivity of solution depends upon the size of ions. 2 Conductivity depends upon the viscosity of solution. 3 Conductivity does not depend upon the solvation of ions present in solution. 4 Conductivity of solution increases with temperature.
Subtopic:  Conductance & Conductivity |
73%
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Using the data given below find out the strongest reducing agent.

1.  Cl-

2.  Cr

3.  Cr3+

4.  Mn2+

Subtopic:  Electrochemical Series |
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Using the data given below find out the strongest oxidizing agent.

1.  Cl-

2.  Mn2+

3.  MnO4-

4.  Cr3+

Subtopic:  Electrochemical Series |
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Using the data given above find out in which option the order of reducing power is correct.

1.  Cr3+ < Cl- < Mn2+ < Cr

2.  Mn2+ < Cl- < Cr3+ < Cr

3.  Cr3+ < Cl- < Cr2O72- < MnO4-

4.  Mn2+ < Cr3+ < Cl- < Cr

Subtopic:  Electrochemical Series |
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Use the data given above to find out the most stable ion in its reduced form.

 1 Cl- 2 Cr3+ 3 Cr 4 Mn2+
Subtopic:  Electrochemical Series |
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