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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 the Hall Heroult process, aluminum is obtained by
Question # 2
Oxidation numebrof oxygen in H2O
Question # 3
Which of the followng elements cannot displace hydrogen from acid.
Question # 4
Faradya's First Law states tass deposited is diretly proportional tohat m
Question # 5
The cathode in an electrolytic cell is.
Question # 6
Electrochemical sereis helps in predicting.
Question # 7
In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
Question # 8
Electrochemical cells convert chemical energy into
Question # 9
The experimental determination of Avogadro's numebr through electrolysis typically involves measuring
Question # 10
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 11
Which metal is the best reducing agent.
Question # 12
The oxidation number of sulfur in H2SO4 is
Question # 13
Down cell is used for extractio of.
Question # 14
The activity series of meals arranges metals in order of their.
Question # 15
The process of coating a metal with zinc is called.
Question # 16
The reducing agent in a redox reaction
Question # 17
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | In redox reactions, oxidizing agents are |
A. reduced
B. Oxidized
C. Always metals
D. Always gases
|
| 2 | Which of the following is not a use of electrochemistry |
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
|
| 3 | Electrolysis is the process of |
A. Chemical energy into electrical
B. Electrical energy into chemical
C. Heat energy into mechanical
D. Mechanical energy into chemical
|
| 4 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
| 5 | Which of the followig will react with HCl to librerate H2 gas |
A. Ag
B. Mg
C. Au
D. Cu
|
| 6 | Whcih metal will displace Cu from CuSO4 Solution. |
A. Zn
B. Ag
C. Hg
D. Pb
|
| 7 | Down cell is used for extractio of. |
A. Zinc
B. Iron
C. Sodium
D. Aluminum
|
| 8 | Electroysis of brine produces. |
A. Hydrogen, oxygen , NaOH
B. Sodium, Chlorine , H2O
C. Hydrogen, Chlorine, NaOH
D. NaOH , Cl2, CO2
|
| 9 | In a galvanic cell, the anode is |
A. Negaive and site of oxidation
B. Postive and site of oxidation
C. Negative and site of reduction
D. Postive and site of reduction
|
| 10 | Which species is educed in the followig rection ? Zn + Cu --------- Zn |
A. Cu2+
B. Zn
C. Cu
D. Zn3+
|
Test Questions