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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
If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.
Question # 2
Electrolysis is the process of
Question # 3
In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
Question # 4
A salt bridge is usually made from
Question # 5
A more genative Eo value means the electrode
Question # 6
The experimental determination of Avogadro's numebr through electrolysis typically involves measuring
Question # 7
In a galvanic cell, the anode is
Question # 8
The oxidation number of sulfur in H2SO4 is
Question # 9
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 10
Electrochemical sereis helps in predicting.
Question # 11
Which of the followng elements cannot displace hydrogen from acid.
Question # 12
An Increase in temperature generally
Question # 13
The principle of measuring DO by Wrinkler's Method is based on.
Question # 14
The process of purifying copper using electricity is called.
Question # 15
Redox reactions always involve.
Question # 16
Which species is educed in the followig rection ? Zn + Cu --------- Zn
Question # 17
The reaction at the cathode is alwyas
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage. |
A. Decrease slowly
B. Decrease repidly
C. Does not change
D. Drope to zero
|
| 2 | If Eo cell is +1.10 V , the reactio is |
A. Spontaneous
B. Non spontaneous
C. At equibrium
D. Endothermic only
|
| 3 | Standard hydrogen electrode is assigned potential of. |
A. 1.0 V
B. 0.5 V
C. 0.0 V
D. -1.0 V
|
| 4 | What is the unit of cell potanetial. |
A. ampere
B. Volt
C. Ohm
D. Farad
|
| 5 | The numebr of coulombs required to deposit 1 mole of Ag |
A. 96500 C
B. 193000 C241250 C
C. 1 C
D. 241250 C
|
| 6 | Whcih metal will displace Cu from CuSO4 Solution. |
A. Zn
B. Ag
C. Hg
D. Pb
|
| 7 | A salt bridge is usually made from |
A. Metallic wires
B. Porous glass
C. Inert salt solution in agar agar
D. Hydrochloric acid
|
| 8 | The process of coating a metal with zinc is called. |
A. Alloying
B. Galvanization
C. Electroefining
D. Electrplating
|
| 9 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
| 10 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
Test Questions