Chapter 2: Electrochemistry MCQs | chemistry Class 12 CBSE

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Question 1

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In a galvanic cell, oxidation takes place at the:

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Question 2

Objective

The standard electrode potential of the standard hydrogen electrode (SHE) is:

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Question 3

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The EMF of a Daniell cell (Zn/ZnSO₄||CuSO₄/Cu) at standard conditions is:

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Question 4

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When an external voltage greater than the cell EMF is applied to a galvanic cell, it:

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Question 5

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The Nernst equation for a cell reaction at temperature T is: E(cell) = E°(cell) – (RT/nF)ln Q. At 298 K, the term (2.303RT/F) evaluates to approximately:

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Question 6

Objective

The relationship between standard Gibbs energy and standard cell EMF is:

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Question 7

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Which of the following is the strongest oxidizing agent based on standard electrode potential values?

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Question 8

Objective

The value of one Faraday is:

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Question 9

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For the cell Ni(s)|Ni²⁺(aq)||Ag⁺(aq)|Ag(s), the cell reaction involves transfer of:

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Question 10

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The SI unit of conductivity (κ) of an electrolytic solution is:

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Question 11

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Molar conductivity (Λm) is related to conductivity (κ) and molar concentration (c) as:

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Question 12

Objective

On dilution of an electrolytic solution, which of the following is always observed?

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Question 13

Objective

Kohlrausch law of independent migration of ions states that at infinite dilution, the molar conductivity of an electrolyte is:

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Question 14

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For a weak electrolyte like acetic acid, as concentration decreases towards zero, the molar conductivity:

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Question 15

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The degree of dissociation (α) of a weak electrolyte at concentration c is given by:

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Question 16

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Which of the following ions has the highest limiting molar conductivity in water at 298 K?

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Question 17

Objective

During electrolysis of molten NaCl, what is produced at the cathode?

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Question 18

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During electrolysis of aqueous NaCl solution, what is produced at the cathode?

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Question 19

Objective

The quantity of electricity required to deposit 1 mole of Al from Al³⁺ is:

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Question 20

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In a dry cell (Leclanché cell), the electrolyte is:

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Chapter 2: Electrochemistry | MCQs

In a galvanic cell, oxidation takes place at the:

The standard electrode potential of the standard hydrogen electrode (SHE) is:

The EMF of a Daniell cell (Zn/ZnSO₄||CuSO₄/Cu) at standard conditions is:

When an external voltage greater than the cell EMF is applied to a galvanic cell, it:

The Nernst equation for a cell reaction at temperature T is: E(cell) = E°(cell) – (RT/nF)ln Q. At 298 K, the term (2.303RT/F) evaluates to approximately:

The relationship between standard Gibbs energy and standard cell EMF is:

Which of the following is the strongest oxidizing agent based on standard electrode potential values?

The value of one Faraday is:

For the cell Ni(s)|Ni²⁺(aq)||Ag⁺(aq)|Ag(s), the cell reaction involves transfer of:

The SI unit of conductivity (κ) of an electrolytic solution is:

Molar conductivity (Λm) is related to conductivity (κ) and molar concentration (c) as:

On dilution of an electrolytic solution, which of the following is always observed?

Kohlrausch law of independent migration of ions states that at infinite dilution, the molar conductivity of an electrolyte is:

For a weak electrolyte like acetic acid, as concentration decreases towards zero, the molar conductivity:

The degree of dissociation (α) of a weak electrolyte at concentration c is given by:

Which of the following ions has the highest limiting molar conductivity in water at 298 K?

During electrolysis of molten NaCl, what is produced at the cathode?

During electrolysis of aqueous NaCl solution, what is produced at the cathode?

The quantity of electricity required to deposit 1 mole of Al from Al³⁺ is:

In a dry cell (Leclanché cell), the electrolyte is:

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