Electrochemistry test 2

12:38:00 Unknown 0 Comments

A test from chapter 10 i.e Electrochemistry of Chemistry 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. The e.m.f. of Daniell cell can be increased by

A) increasing the area of electrode
B) increasing the concentration of oxidising ion in the solution
C) increasing the concentration of reducing ion in the solution
D) adding the dil H2SO4

2. Metal and their ionic salts both conduct electricity. Which of the following statement is not correct both

A) are good conductors normally
B) are ionic in nature
C) decompose on passing current
D) are normally solid

3. The branch of chemistry which deals with the relationships between electricity and chemical reaction is called

A) Chemical kinetics
B) electrochemistry
C) stiochiometry
D) thermochemistry

4. A system containing of electrodes that dips into an electrolyte in which a chemical reaction either uses or generates an electric current is called

A) voltaic cell
B) electrochemical cell
C) boltaic or galvanic cell
D) fuel cell

5. A cell in which spontaneous redox reaction generates an electric current is called

A) electrolytic cell
B) electrochemical cell
C) voltaic orgalvanic cell
D) biological cell

6. A cell in which an electric current drives a non–spontaneous reaction is called

A) electrolytic cell
B) voltaic cell
C) biological cell
D) electrochemical cell

7. A process for converting one metal with a thin layer of another metal is called

A) electrolysis
B) electroplating
C) electrode potential
D) standard electrode

8. In an electrical connection between cathode and anode of a voltaic cell, electrons flow from the

A) anode to the cathode
B) cathode to the anode
C) both
D) none

9. Greater the value of standard reduction potential of a species indicates

A) greater its tendency to accepted electrons
B) lesser tendency to accept electrons
C) greater tendency to lose electrons
D) none

10. In lead accumulator the electrolyte H2SO4 solution is

A) 30 %
B) 60 %
C) 80 %
D) 90 %