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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
Electroysis of brine produces.
Question # 2
The reaction at the cathode is alwyas
Question # 3
The cathode in an electrolytic cell is.
Question # 4
Redox reactions always involve.
Question # 5
An Increase in temperature generally
Question # 6
Standard hydrogen electrode is assigned potential of.
Question # 7
Down cell is used for extractio of.
Question # 8
The process of purifying copper using electricity is called.
Question # 9
Electroyte in electroplating of silver
Question # 10
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 11
A Daniell cell produces electricity through
Question # 12
A salt bridge is usually made from
Question # 13
The experimental determination of Avogadro's numebr through electrolysis typically involves measuring
Question # 14
The activity series of meals arranges metals in order of their.
Question # 15
Electrochemical equivalent is.
Question # 16
Which component maintains elecrical neutrality in an electronchemical cell
Question # 17
In redox reactions, oxidizing agents are
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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | In an electrochecmial cell, which ion migrates to cathode through the salt bridge. |
A. Anions
B. Cations
C. Eletrons
D. Protons
|
| 2 | 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. |
A. Mass numebr of the ion
B. One mole of electrons being transferred
C. Avogadro's nmber of ions being discharged
D. Standrd electrode potentil of the metal iion
|
| 3 | If Eo cell is +1.10 V , the reactio is |
A. Spontaneous
B. Non spontaneous
C. At equibrium
D. Endothermic only
|
| 4 | Which of the following metals would most raadily displace hydrogen gas from dilute acids. |
A. Copper
B. Silver
C. Magnesium
D. Platinum
|
| 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 | Which of the followng elements cannot displace hydrogen from acid. |
A. Zn
B. Cu
C. AI
D. Fe
|
| 7 | Which metal is the best reducing agent. |
A. Cu
B. K
C. Zn
D. Fe
|
| 8 | Which element has Eo = 0.00 V? |
A. H+
B. H2
C. SHE
D. All of the above
|
| 9 | The oxidation number of sulfur in H2SO4 is |
A. +2
B. +4
C. +6
D. +8
|
| 10 | In the Hall Heroult process, aluminum is obtained by |
A. Chemical reaction
B. Thermal decomposition
C. Elelctrolysis of alumina
D. Roasting and leaching
|
Test Questions