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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
Electrochemical cells convert chemical energy into
Question # 3
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 4
The process of purifying copper using electricity is called.
Question # 5
In the Hall Heroult process, aluminum is obtained by
Question # 6
Electrochemical equivalent is.
Question # 7
The experimental determination of Avogadro's numebr through electrolysis typically involves measuring
Question # 8
The reaction at the cathode is alwyas
Question # 9
Electroysis is used in the extration of
Question # 10
A more genative Eo value means the electrode
Question # 11
A salt bridge is usually made from
Question # 12
The salt brige allows tranfer of ........in Zn -Cu voltaic cell
Question # 13
If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.
Question # 14
The activity series of meals arranges metals in order of their.
Question # 15
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 16
The process of coating a metal with zinc is called.
Question # 17
The oxidation number of sulfur in H2SO4 is
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | A positive value for the standared electrode potential of a metal ion metal half cell indicate that |
A. The metal is stong reducing agent
B. The metal ion is redily oxidized
C. The metal ion is redily reduced
D. The metal will readily displace hydrogen from dilute acids.
|
| 2 | The salt brige allows tranfer of ........in Zn -Cu voltaic cell |
A. SO4 Ions
B. Zn2 ions
C. Both
D. None of thes
|
| 3 | For a redox reaction to be spontaneous, Delga G should be |
A. Positive
B. Negative
C. Zero
D. Constant
|
| 4 | Faradya's First Law states tass deposited is diretly proportional tohat m |
A. Time
B. Voltage
C. Resistance
D. Quantity of electricity passed
|
| 5 | Electroysis is used in the extration of |
A. Silver
B. Gold
C. Aluminum
D. Mercury
|
| 6 | An Increase in temperature generally |
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
|
| 7 | Electroysis requires. |
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion
|
| 8 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 9 | Cell potential is the differecne between |
A. Temperature and pressure
B. Concentration of ions
C. Electrode potentials of chathode and anode
D. Mass of electrodes
|
| 10 | The numebr of coulombs required to deposit 1 mole of Ag |
A. 96500 C
B. 193000 C241250 C
C. 1 C
D. 241250 C
|
Test Questions
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Nawal NADEEM
21 May 2017Good job!!!