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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
Oxidation numebrof oxygen in H2O
Question # 2
Which element has Eo = 0.00 V?
Question # 3
In electroplating the object to be plated is connected to
Question # 4
The activity series of meals arranges metals in order of their.
Question # 5
The principle of measuring DO by Wrinkler's Method is based on.
Question # 6
Electrochemical equivalent is.
Question # 7
Down cell is used for extractio of.
Question # 8
The process of coating a metal with zinc is called.
Question # 9
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 10
Electroplating involves.
Question # 11
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 # 12
The reducing agent in a redox reaction
Question # 13
Standard electrode potential is measured under
Question # 14
In a galvanic cell, the anode is
Question # 15
Electroysis requires.
Question # 16
In the Hall Heroult process, aluminum is obtained by
Question # 17
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Which species is educed in the followig rection ? Zn + Cu --------- Zn |
A. Cu2+
B. Zn
C. Cu
D. Zn3+
|
| 2 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 3 | If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have |
A. CuSO4 Solution
B. Zn SO4 Solution
C. Cu Ions
D. Zn Solid
|
| 4 | One Faraday is equl to |
A. 1 C
B. 96500 C
C. 1 J
D. 96500 J
|
| 5 | In redox reactions, oxidizing agents are |
A. reduced
B. Oxidized
C. Always metals
D. Always gases
|
| 6 | 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
|
| 7 | The experimental determination of Avogadro's numebr through electrolysis typically involves measuring |
A. The current and voltage applied
B. The mass of the substance deposited or liberated by a konown charge
C. The conductivity of the electrolytic solution
D. The temperature changes duirng electrolysis
|
| 8 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
| 9 | Standard electrode potential is measured under |
A. 100 oC and 1 atm
B. 0 oC and 1 M concentration
C. 25 oC and 1 M concentration
D. 100 oC and 1 M concentration
|
| 10 | The process of coating a metal with zinc is called. |
A. Alloying
B. Galvanization
C. Electroefining
D. Electrplating
|
Test Questions