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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
The metal depostied at cathode during electolysis of NaCl is.
Question # 2
Electroyte in electroplating of silver
Question # 3
The activity series of meals arranges metals in order of their.
Question # 4
In electolysis, reduction always occurs at
Question # 5
The more positive the standard reduction potential
Question # 6
Electroysis is used in the extration of
Question # 7
The process of purifying copper using electricity is called.
Question # 8
Electrochemical equivalent is.
Question # 9
Electrochemical cells convert chemical energy into
Question # 10
Standard electrode potential is measured under
Question # 11
If Eo cell is +1.10 V , the reactio is
Question # 12
Faradya's First Law states tass deposited is diretly proportional tohat m
Question # 13
The principle of measuring DO by Wrinkler's Method is based on.
Question # 14
The reducing agent in a redox reaction
Question # 15
Cell potential is the differecne between
Question # 16
Electroysis requires.
Question # 17
In the Hall Heroult process, aluminum is obtained by
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Z Zahra Batool 27 - Jul - 2024 01 Min 47 Sec 12/17
FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | Standard hydrogen electrode is assigned potential of. |
A. 1.0 V
B. 0.5 V
C. 0.0 V
D. -1.0 V
|
| 3 | Electroysis is used in the extration of |
A. Silver
B. Gold
C. Aluminum
D. Mercury
|
| 4 | Down cell is used for extractio of. |
A. Zinc
B. Iron
C. Sodium
D. Aluminum
|
| 5 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
| 6 | Which species is educed in the followig rection ? Zn + Cu --------- Zn |
A. Cu2+
B. Zn
C. Cu
D. Zn3+
|
| 7 | Which of the following metals would most raadily displace hydrogen gas from dilute acids. |
A. Copper
B. Silver
C. Magnesium
D. Platinum
|
| 8 | The process of coating a metal with zinc is called. |
A. Alloying
B. Galvanization
C. Electroefining
D. Electrplating
|
| 9 | The oxidation number of sulfur in H2SO4 is |
A. +2
B. +4
C. +6
D. +8
|
| 10 | An Increase in temperature generally |
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
|
Test Questions