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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 of the following is not a use of electrochemistry
Question # 2
A salt bridge is usually made from
Question # 3
The reducing agent in a redox reaction
Question # 4
What is the unit of cell potanetial.
Question # 5
In the Hall Heroult process, aluminum is obtained by
Question # 6
Faradya's First Law states tass deposited is diretly proportional tohat m
Question # 7
Electrolysis of CuSO4 using copper eletrodes results in
Question # 8
Standard hydrogen electrode is assigned potential of.
Question # 9
Which of the followig will react with HCl to librerate H2 gas
Question # 10
Electrochemical cells convert chemical energy into
Question # 11
Electrons in a galvanic cell flow from
Question # 12
Which species is educed in the followig rection ? Zn + Cu --------- Zn
Question # 13
The more positive the standard reduction potential
Question # 14
Electrochemical sereis helps in predicting.
Question # 15
In redox reactions, oxidizing agents are
Question # 16
The cathode in an electrolytic cell is.
Question # 17
In electroplating the object to be plated is connected to
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | 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
|
| 2 | Oxidation numebrof oxygen in H2O |
A. 1
B. -2
C. 0
D. +1
|
| 3 | Which of the following changes wold typically lead to an incresse in he rate of electrolysis. |
A. Decreasing ghe concentration of the electrolyte
B. Incressing the distance between the electrodes
C. Decressing the surface area of the electrolytic cell
D. Increasing the current passed though the electroytic cell
|
| 4 | A more genative Eo value means the electrode |
A. Is a stong oxidizing agent
B. Is a strong reducing agent
C. Is neurtal
D. Has high electronegagtivity
|
| 5 | The activity series of meals arranges metals in order of their. |
A. Atomic mass
B. Density
C. Ease of oxidation
D. Ease of reduction
|
| 6 | 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
|
| 7 | An Increase in temperature generally |
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
|
| 8 | 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
|
| 9 | Which component maintains elecrical neutrality in an electronchemical cell |
A. Salt bridge
B. Voltmeter
C. Electrolyte
D. Electrodes
|
| 10 | The process of coating a metal with zinc is called. |
A. Alloying
B. Galvanization
C. Electroefining
D. Electrplating
|
Test Questions