Electrochemistry test 4

13:12:00 Unknown 0 Comments

A test from chapter 5 i.e Circular of Physics part 1. This is Free online test for FSc and Entry test Preparation for UET, NUST, FAST, GIKI, PIEAS, NFC, Punjab University, UHS, other Engineering Universities and Medical Colleges.

1. When the current is passed through an electrolytic solution, which of the following process will occur

A) anions move towards anode and cations move towards cathode
B) cations and anions both move towards anode
C) cations and anions both move towards anode
D) no movement of the ions occur

2. Electric current passes through both molten and solution form of NaCl because of

A) ionic bonding
B) Na+ and Cl– ions
C) ions of water
D) hydration of ions

3. A cell which produces electric current by redox reaction is called

A) standard cell
B) boltaic cell
C) reversible cell
D) concentration cell

4. Which of the following conduct electricity due to the migration of electrons only

A) copper metal
B) NaCl molten
C) NaCl
D) NaCl Solution

5. Fuel cells are the means by which chemical energy may be converted into

A) heat energy
B) electrical energy
C) mechanical energy
D) sound energy

6. Substances through which electric current can pass are called

A) insulators
B) conductors
C) cathode
D) anode

7. Substances through which electric current cannot pass are called

A) insulators
B) conductors
C) anode
D) cathode

8. Metallic conduction is due to the

A) movement of electrons
B) movement of ions
C) both
D) none

9. Metallic conductors conduct electricity

A) with chemical change
B) without any chemical change
C) both
D) none

10. The flow of electrons is called

A) electrolyte
B) electric current
C) cathode
D) anode