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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 followig will react with HCl to librerate H2 gas
Question # 2
Which of the followng elements cannot displace hydrogen from acid.
Question # 3
Redox reactions always involve.
Question # 4
In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
Question # 5
In electroplating the object to be plated is connected to
Question # 6
What is the unit of cell potanetial.
Question # 7
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 # 8
Which metal is the best reducing agent.
Question # 9
Electroysis of brine produces.
Question # 10
The salt brige allows tranfer of ........in Zn -Cu voltaic cell
Question # 11
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 12
If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.
Question # 13
In redox reactions, oxidizing agents are
Question # 14
A more genative Eo value means the electrode
Question # 15
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
Question # 16
Electroysis requires.
Question # 17
The metal depostied at cathode during electolysis of NaCl is.
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Z Zaima Rahim 25 - Sep - 2024 01 Min 24 Sec 17/17 -
S Saleena Ramzan 25 - Aug - 2024 01 Min 34 Sec 17/17 -
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C Chemistry world 26 - Sep - 2024 02 Min 27 Sec 16/17 -
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H Habib Ansari 24 - Sep - 2024 02 Min 32 Sec 14/17 -
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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 | The experimental determination of Avogadro's numebr through electrolysis typically involves measuring |
A. The current and voltage applied
B. The mass of the substance deposited or liberated by a konown charge
C. The conductivity of the electrolytic solution
D. The temperature changes duirng electrolysis
|
| 2 | Electrolysis of CuSO4 using copper eletrodes results in |
A. Increase in eletolyte concentration
B. Decrease in Cu2+ concentration
C. No change in electrolyte composition
D. Formation of new compound
|
| 3 | The salt brige allows tranfer of ........in Zn -Cu voltaic cell |
A. SO4 Ions
B. Zn2 ions
C. Both
D. None of thes
|
| 4 | Electrochemical cells convert chemical energy into |
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
|
| 5 | Electrons in a galvanic cell flow from |
A. Anode to cathode
B. Cathode to anode
C. Salt bridge to cathode
D. Elecrolyte to anode
|
| 6 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
| 7 | Standard hydrogen electrode is assigned potential of. |
A. 1.0 V
B. 0.5 V
C. 0.0 V
D. -1.0 V
|
| 8 | Electroplating involves. |
A. Electrolysis for coating
B. Spontaneous oxidation
C. Redox without electordes
D. Thermolysis
|
| 9 | An Increase in temperature generally |
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
|
| 10 | The more positive the standard reduction potential |
A. The stronger the reducing agent
B. The weaker the oxidizing agent
C. The stronger the oxidizing agent
D. No effect
|
Test Questions