Electrochemistry Class 12 Chemistry Free Online Mock Test 1

By admin / March 12, 2025

Class 12 Chemistry Online Free Mock Test

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Electrochemistry Class 12 Chemistry Free Online Mock Test 1

1 / 9
The conductivity of electrolytic conductors is due to __________
Flow of free mobile electrons
Movement of ions
Either movement of electrons or ions
Cannot be said

2 / 9
Which of the following assertions about the main cell is correct?
An example of a primary cell is a mercury cell
An example of a primary cell is a nickel-cadmium storage cell
The electrode reactions can be reversed
It can be recharged

3 / 9
In a dry cell, which of the following is the electrolyte?
Potassium hydroxide
Sulphuric acid
Ammonium chloride
Manganese dioxide

4 / 9
Which of the following is given to a fuel cell’s cathode?
H
N
O
Cl

5 / 9
A cathode and an anode are the most common components of an electrochemical cell. Which of the following claims about the cathode is correct?
Oxidation occurs at the cathode
Electrons move into the cathode
Usually denoted by a negative sign
Is usually made up of insulating material

6 / 9
Which of the following statements about a lead storage cell (or a lead-acid battery) is false?
It is a primary cell
The cathode is made up of lead(IV) oxide
The anode is made up of lead
The electrolyte used is an aqueous solution of sulphuric acid

7 / 9
Which of the following claims about electrochemical cells is true?
Cell potential is an extensive property
Cell potential is an intensive property
The Gibbs free energy of an electrochemical cell is an intensive property
Gibbs free energy is undefined for an electrochemical cell

8 / 9
Which of the following does not belong in the category of electrochemical cells?
Voltaic cell
Photovoltaic cell
Electrolytic cell
Fuel Cell

9 / 9
The process of transmitting electric current through an electrolyte’s solution to decompose it is known as __________+
Electrolyte
Electrode
Electrolysis
Electrochemical cell

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