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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 a galvanic cell, the anode is
Question # 2
Which metal is the best reducing agent.
Question # 3
The experimental determination of Avogadro's numebr through electrolysis typically involves measuring
Question # 4
Electrons in a galvanic cell flow from
Question # 5
For a redox reaction to be spontaneous, Delga G should be
Question # 6
The reaction at the cathode is alwyas
Question # 7
Electrochemical cells convert chemical energy into
Question # 8
One Faraday is equl to
Question # 9
What is the unit of cell potanetial.
Question # 10
Which component maintains elecrical neutrality in an electronchemical cell
Question # 11
Electroplating involves.
Question # 12
An Increase in temperature generally
Question # 13
The oxidation number of sulfur in H2SO4 is
Question # 14
Which of the following is not a use of electrochemistry
Question # 15
Electrochemical sereis helps in predicting.
Question # 16
In redox reactions, oxidizing agents are
Question # 17
The salt brige allows tranfer of ........in Zn -Cu voltaic cell
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Electrons in a galvanic cell flow from |
A. Anode to cathode
B. Cathode to anode
C. Salt bridge to cathode
D. Elecrolyte to anode
|
| 2 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 3 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
| 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 process of coating a metal with zinc is called. |
A. Alloying
B. Galvanization
C. Electroefining
D. Electrplating
|
| 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 | Which of the following is not a use of electrochemistry |
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
|
| 8 | Electroysis requires. |
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion
|
| 9 | The oxidation number of sulfur in H2SO4 is |
A. +2
B. +4
C. +6
D. +8
|
| 10 | Electroysis of brine produces. |
A. Hydrogen, oxygen , NaOH
B. Sodium, Chlorine , H2O
C. Hydrogen, Chlorine, NaOH
D. NaOH , Cl2, CO2
|
Test Questions