Electrochemistry CBSE Class 12 Chemistry MCQ Questions with Answer Keys

If you are preparing for CBSE Class 12 Board Exam Term 1 which will be an objective type questions paper, then you need to practice multiple choice questions of Class 12 Chemistry Chapterwise. In this article of AKVTutorials, you will get MCQ Questions for Class 12 Chapter 3 Electrochemistry with Answer Keys.

Electrochemistry MCQ Questions for Class 12 Question No 11: 

Galvanized iron is 

Option A : Iron coated with tin

Option B : Tin coated with iron

Option C : Zinc coated with iron

Option D : Iron coated with zinc

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Option D : Iron coated with zinc

Electrochemistry MCQ Questions for Class 12 Question No 12:   

In a galvanic cell

Option A : Chemical energy is converted into electrical energy

Option B : Electrical energy is converted into chemical energy

Option C : The cathode is the negative terminal and the anode is the positive terminal

Option D : None of these

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Option A : Chemical energy is converted into electrical energy

Electrochemistry MCQ Questions for Class 12 Question No 13:   

When a lead battery is discharged,

Option A : Lead Sulphate is consumed

Option B : Oxygen gas is evolved

Option C : Lead sulphate is formed

Option D : Lead sulphide is formed

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Option C : Lead sulphate is formed

Electrochemistry MCQ Questions for Class 12 Question No 14:       

When water is added to an aqueous solution of an electrolyte, what is the change in specific conductivity of the electrolyte?

Option A : Conductivity decreases

Option B : Conductivity increases

Option C : Conductivity remains same

Option D : Conductivity does not depend on number of ions

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Option A : Conductivity decreases

Electrochemistry MCQ Questions for Class 12 Question No 15:      

In an electrolytic cell, the flow of electrons is

Option A : From cathode to anode in the solution

Option B : From cathode to anode through external supply

Option C : From cathode to anode through internal supply

Option D : From anode to cathode through internal supply

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Option C : From cathode to anode through internal supply

Electrochemistry MCQ Questions for Class 12 Question No 16:         

Cell reaction is spontaneous, when

Option A : E0red is negative

Option B : ΔG0 is negative

Option C : E0 oxd is positive

Option D : ΔG0 is positive

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Option B : ΔG0 is negative

Electrochemistry MCQ Questions for Class 12 Question No 17:     

The cell constant of an electrochemical cell is given by

Option A : k/R

Option B : Rk

Option C : R2k

Option D : R/k

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Option B : Rk

Electrochemistry MCQ Questions for Class 12 Question No 18:      

A salt bridge may contain

Option A : A saturated solution of KCl and agar-agar

Option B : A saturated solution of KNO3 and agar-agar

Option C : A saturated solution of NH4NO3 and agar-agar

Option D : All of these

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Option D : All of these

Electrochemistry MCQ Questions for Class 12 Question No 19:     

1 Farad = ? C

Option A : 96500C

Option B : 69500C

Option C : 59600C

Option D : 95600C

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Option C : 6

Electrochemistry MCQ Questions for Class 12 Question No 20:      

Fluorine is the best oxidizing agent because it has

Option A : Highest electron affinity

Option B : Highest reduction potential

Option C : Highest oxidation potential

Option D : Lowest electron affinity

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Option B : Highest reduction potential

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