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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
Faradya's First Law states tass deposited is diretly proportional tohat m
Question # 2
Which of the followig will react with HCl to librerate H2 gas
Question # 3
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 # 4
A Daniell cell produces electricity through
Question # 5
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 6
Which metal is the best reducing agent.
Question # 7
Down cell is used for extractio of.
Question # 8
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
Question # 9
The oxidation number of sulfur in H2SO4 is
Question # 10
Electroysis requires.
Question # 11
Oxidation numebrof oxygen in H2O
Question # 12
If Eo cell is +1.10 V , the reactio is
Question # 13
The metal depostied at cathode during electolysis of NaCl is.
Question # 14
In the Hall Heroult process, aluminum is obtained by
Question # 15
The activity series of meals arranges metals in order of their.
Question # 16
Whcih metal will displace Cu from CuSO4 Solution.
Question # 17
The process of purifying copper using electricity is called.
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Electroysis of brine produces. |
A. Hydrogen, oxygen , NaOH
B. Sodium, Chlorine , H2O
C. Hydrogen, Chlorine, NaOH
D. NaOH , Cl2, CO2
|
| 2 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 3 | Electrochemical equivalent is. |
A. Mass per mole
B. Mass per coulomb
C. Charge per second
D. Current per mass
|
| 4 | Which of the followig will react with HCl to librerate H2 gas |
A. Ag
B. Mg
C. Au
D. Cu
|
| 5 | Electroysis is used in the extration of |
A. Silver
B. Gold
C. Aluminum
D. Mercury
|
| 6 | Which species is educed in the followig rection ? Zn + Cu --------- Zn |
A. Cu2+
B. Zn
C. Cu
D. Zn3+
|
| 7 | Electrolysis of CuSO4 using copper eletrodes results in |
A. Increase in eletolyte concentration
B. Decrease in Cu2+ concentration
C. No change in electrolyte composition
D. Formation of new compound
|
| 8 | If 1 Faraday of elecricity is passed the mass deposited equals. |
A. 1 gram equivalent
B. 1 gram
C. 1 mole
D. 1 atm
|
| 9 | 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
|
| 10 | 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
|
Test Questions
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Nawal NADEEM
21 May 2017Good job!!!