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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
Electrochemical equivalent is.
Question # 2
Cell potential is the differecne between
Question # 3
The reaction at the cathode is alwyas
Question # 4
Which of the followig will react with HCl to librerate H2 gas
Question # 5
The process of coating a metal with zinc is called.
Question # 6
Electrochemical sereis helps in predicting.
Question # 7
Electrochemical cells convert chemical energy into
Question # 8
Which element has Eo = 0.00 V?
Question # 9
Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
Question # 10
Which of the following metals would most raadily displace hydrogen gas from dilute acids.
Question # 11
Electrolysis is the process of
Question # 12
Which species is educed in the followig rection ? Zn + Cu --------- Zn
Question # 13
The anode is electrolysis of molten NaCl is
Question # 14
The activity series of meals arranges metals in order of their.
Question # 15
Down cell is used for extractio of.
Question # 16
An Increase in temperature generally
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 | A salt bridge is usually made from |
A. Metallic wires
B. Porous glass
C. Inert salt solution in agar agar
D. Hydrochloric acid
|
| 2 | The reaction at the cathode is alwyas |
A. Oxidation
B. Neutral
C. Reduction
D. Ionization
|
| 3 | In electolysis, reduction always occurs at |
A. Anode
B. Cathode
C. Salt bridge
D. Electroyte
|
| 4 | Electroysis requires. |
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion
|
| 5 | The oxidation number of sulfur in H2SO4 is |
A. +2
B. +4
C. +6
D. +8
|
| 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 metals would most raadily displace hydrogen gas from dilute acids. |
A. Copper
B. Silver
C. Magnesium
D. Platinum
|
| 8 | Standard hydrogen electrode is assigned potential of. |
A. 1.0 V
B. 0.5 V
C. 0.0 V
D. -1.0 V
|
| 9 | 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
|
| 10 | For a redox reaction to be spontaneous, Delga G should be |
A. Positive
B. Negative
C. Zero
D. Constant
|
Test Questions