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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 metal is the best reducing agent.
Question # 2
Electroplating involves.
Question # 3
Electroysis is used in the extration of
Question # 4
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 # 5
Electrons in a galvanic cell flow from
Question # 6
Standard hydrogen electrode is assigned potential of.
Question # 7
The reaction at the cathode is alwyas
Question # 8
Electroysis of brine produces.
Question # 9
Down cell is used for extractio of.
Question # 10
Which of the followig will react with HCl to librerate H2 gas
Question # 11
Electroysis requires.
Question # 12
If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
Question # 13
For a redox reaction to be spontaneous, Delga G should be
Question # 14
The metal depostied at cathode during electolysis of NaCl is.
Question # 15
The process of coating a metal with zinc is called.
Question # 16
The principle of measuring DO by Wrinkler's Method is based on.
Question # 17
The anode is electrolysis of molten NaCl is
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | The process of purifying copper using electricity is called. |
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
|
| 2 | Electrochemical cells convert chemical energy into |
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
|
| 3 | Which species is educed in the followig rection ? Zn + Cu --------- Zn |
A. Cu2+
B. Zn
C. Cu
D. Zn3+
|
| 4 | Electroyte in electroplating of silver |
A. AgNo3
B. NaCl
C. CuSO4
D. HNO3
|
| 5 | For a redox reaction to be spontaneous, Delga G should be |
A. Positive
B. Negative
C. Zero
D. Constant
|
| 6 | In an electrochecmial cell, which ion migrates to cathode through the salt bridge. |
A. Anions
B. Cations
C. Eletrons
D. Protons
|
| 7 | The reaction at the cathode is alwyas |
A. Oxidation
B. Neutral
C. Reduction
D. Ionization
|
| 8 | The anode is electrolysis of molten NaCl is |
A. Na+
B. Cl-
C. Na
D. H-
|
| 9 | The metal depostied at cathode during electolysis of NaCl is. |
A. Cl2
B. Na
C. H2
D. Cu
|
| 10 | 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
|
Test Questions