Electro Chemical Cells MCQs

By: Prof. Dr. Fazal Rehman | Last updated: May 29, 2025

1. : Select the strong electrolytes?
(A) HCL
(B) Acetic acid
(C) Propinoic acid
(D) H2SO3

2. : Select the weak base electrolyte?
(A) NaOH
(B) KOH
(C) Ca(OH)2
(D) Alkyl amines

3. : On dilution ionisation __________ in electrolyte.
(A) Increases
(B) Decreases
(C) Becomes very small
(D) Do not change

4. : _________ is a specific term in which conductance is expressed.
(A) Ohm/cm
(B) Ohm.cm
(C) Ohm⁻¹ cm⁻¹
(D) Ohm⁻¹ cm

5. : The formula by which degree of ionisation is given is ___________
(A) α = λv * λα
(B) α = λv / λα
(C) α = λv – λα
(D) α = λv + λα

6. : Special type of cell known as ___________ in which electrolyte is placed.
(A) Conductivity cell
(B) Conductance cell
(C) Equivalent cell
(D) Conduction cell

7. : A head telephone ear piece is used instead of _________ to detect the flow of current.
(A) Ammeter
(B) Galvanometer
(C) Multimeter
(D) Voltmeter

8. : Passing an electric current through its solution is called as _________ that is the process of decomposition of an electrolyte.
(A) Electrolyte
(B) Electrode
(C) Electrolysis
(D) Electrochemical cell

9. : The conductance is due to ____________in electrolytic conductors.
(A) Flow of free mobile electrons
(B) Movement of ions
(C) Either movement of electrons or ions
(D) Cannot be said

10. : The resistance of the conductor __________ in the electrolytic cell with an increase in temperature.
(A) Increase
(B) Decrease
(C) Slightly increase
(D) Do no change

11. : Mercuric chloride is one of the strong electrolytes.
(A) True
(B) False
Answer: (B) False

12. : On dilution the specific conductance of the electrolyte __________
(A) Increases
(B) Decrease
(C) Slightly increases
(D) Cannot be determined

13. : Select the example of the electrolytes?
(A) Acids
(B) Metals
(C) Alloys
(D) Oxides