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MCQ's Test For Chapter 10 "Electrochemistry"
Try The MCQ's Test For Chapter 10 "Electrochemistry"
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Total Questions17
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Time Allowed20
Electrochemistry
00:00
Question # 1
In electolysis, reduction always occurs at
Question # 2
Electroplating involves.
Question # 3
A positive value for the standared electrode potential of a metal ion metal half cell indicate that
Question # 4
Electrochemical cells convert chemical energy into
Question # 5
Which of the following is not a use of electrochemistry
Question # 6
If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.
Question # 7
Which metal is the best reducing agent.
Question # 8
The numebr of coulombs required to deposit 1 mole of Ag
Question # 9
The salt brige allows tranfer of ........in Zn -Cu voltaic cell
Question # 10
Electroysis is used in the extration of
Question # 11
Which of the followig will react with HCl to librerate H2 gas
Question # 12
An Increase in temperature generally
Question # 13
The reducing agent in a redox reaction
Question # 14
One Faraday is equl to
Question # 15
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 16
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
Question # 17
Electrolysis of CuSO4 using copper eletrodes results in
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Which of the following changes wold typically lead to an incresse in he rate of electrolysis. |
A. Decreasing ghe concentration of the electrolyte
B. Incressing the distance between the electrodes
C. Decressing the surface area of the electrolytic cell
D. Increasing the current passed though the electroytic cell
|
| 2 | In electroplating the object to be plated is connected to |
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte
|
| 3 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
| 4 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 5 | Electrochemical cells convert chemical energy into |
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
|
| 6 | Whcih metal will displace Cu from CuSO4 Solution. |
A. Zn
B. Ag
C. Hg
D. Pb
|
| 7 | In an electrolysis exprement if a charge 96,500 Coluombs is passed trough a solution, the amount of substance liberated or deposited at the electrode is directly relatd to. |
A. Mass numebr of the ion
B. One mole of electrons being transferred
C. Avogadro's nmber of ions being discharged
D. Standrd electrode potentil of the metal iion
|
| 8 | The oxidation number of sulfur in H2SO4 is |
A. +2
B. +4
C. +6
D. +8
|
| 9 | One Faraday is equl to |
A. 1 C
B. 96500 C
C. 1 J
D. 96500 J
|
| 10 | If 1 Faraday of elecricity is passed the mass deposited equals. |
A. 1 gram equivalent
B. 1 gram
C. 1 mole
D. 1 atm
|
Test Questions