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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 an electrochecmial cell, which ion migrates to cathode through the salt bridge.
Question # 2
Electrons in a galvanic cell flow from
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
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 5
Standard hydrogen electrode is assigned potential of.
Question # 6
The more positive the standard reduction potential
Question # 7
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 8
Faradya's First Law states tass deposited is diretly proportional tohat m
Question # 9
Electroplating involves.
Question # 10
Electroysis of brine produces.
Question # 11
For a redox reaction to be spontaneous, Delga G should be
Question # 12
Electrochemical sereis helps in predicting.
Question # 13
The activity series of meals arranges metals in order of their.
Question # 14
Which metal is the best reducing agent.
Question # 15
Which of the following is not a use of electrochemistry
Question # 16
The salt brige allows tranfer of ........in Zn -Cu voltaic cell
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 | The anode is electrolysis of molten NaCl is |
A. Na+
B. Cl-
C. Na
D. H-
|
| 2 | 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
|
| 3 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
| 4 | Electroyte in electroplating of silver |
A. AgNo3
B. NaCl
C. CuSO4
D. HNO3
|
| 5 | Electrochemical cells convert chemical energy into |
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
|
| 6 | In electolysis, reduction always occurs at |
A. Anode
B. Cathode
C. Salt bridge
D. Electroyte
|
| 7 | Redox reactions always involve. |
A. Gain of protons
B. Transfer of electrons
C. Loss ofneutrons
D. Nuclear change
|
| 8 | 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
|
| 9 | Which element has Eo = 0.00 V? |
A. H+
B. H2
C. SHE
D. All of the above
|
| 10 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
Test Questions