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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
Which species is educed in the followig rection ? Zn + Cu --------- Zn
Question # 2
In redox reactions, oxidizing agents are
Question # 3
Electroysis of brine produces.
Question # 4
The principle of measuring DO by Wrinkler's Method is based on.
Question # 5
The metal depostied at cathode during electolysis of NaCl is.
Question # 6
The reducing agent in a redox reaction
Question # 7
The process of coating a metal with zinc is called.
Question # 8
Whcih metal will displace Cu from CuSO4 Solution.
Question # 9
Electrolysis is the process of
Question # 10
Down cell is used for extractio of.
Question # 11
A more genative Eo value means the electrode
Question # 12
The cathode in an electrolytic cell is.
Question # 13
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.
Question # 14
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
Question # 15
What is the unit of cell potanetial.
Question # 16
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 17
Standard electrode potential is measured under
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Electroysis requires. |
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion
|
| 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 | Which metal is the best reducing agent. |
A. Cu
B. K
C. Zn
D. Fe
|
| 5 | In electroplating the object to be plated is connected to |
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte
|
| 6 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
| 7 | The more positive the standard reduction potential |
A. The stronger the reducing agent
B. The weaker the oxidizing agent
C. The stronger the oxidizing agent
D. No effect
|
| 8 | In an electrochecmial cell, which ion migrates to cathode through the salt bridge. |
A. Anions
B. Cations
C. Eletrons
D. Protons
|
| 9 | What is the unit of cell potanetial. |
A. ampere
B. Volt
C. Ohm
D. Farad
|
| 10 | Electroplating involves. |
A. Electrolysis for coating
B. Spontaneous oxidation
C. Redox without electordes
D. Thermolysis
|
Test Questions