11th Class Chemistry Chapter 10 MCQ Test with Answer

MCQ's Test For Chapter 10 "Electrochemistry"

Try The MCQ's Test For Chapter 10 "Electrochemistry"

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  • Time Allowed20

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Electrochemistry

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Question # 1

For a redox reaction to be spontaneous, Delga G should be

Question # 2

Which of the following changes wold typically lead to an incresse in he rate of electrolysis.

Question # 3

If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.

Question # 4

Oxidation numebrof oxygen in H2O

Question # 5

Electroysis is used in the extration of

Question # 6

Faradya's First Law states tass deposited is diretly proportional tohat m

Question # 7

A positive value for the standared electrode potential of a metal ion metal half cell indicate that

Question # 8

Electrochemical equivalent is.

Question # 9

Electroplating involves.

Question # 10

In the Hall Heroult process, aluminum is obtained by 

Question # 11

Electrons in a galvanic cell flow from

Question # 12

Electrolysis of CuSO4  using copper eletrodes results in

Question # 13

A more genative Eo value means the electrode

Question # 14

The principle of measuring DO by Wrinkler's Method is based on.

Question # 15

If 1 Faraday of elecricity is passed the mass deposited equals.

Question # 16

The numebr of coulombs required to deposit 1 mole of Ag

Question # 17

The oxidation number of sulfur in H2SO4 is

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FSc Part 1 Chemistry (New Book) Chapter 10 Important MCQ's

Sr.# Question Answer
1 In the Hall Heroult process, aluminum is obtained by 
A. Chemical reaction
B. Thermal decomposition 
C. Elelctrolysis of alumina
D. Roasting and leaching
2 Electroysis is used in the extration of
A. Silver
B. Gold
C. Aluminum
D. Mercury
3 Electroysis requires.
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion 
4 Electroyte in electroplating of silver
A. AgNo3
B. NaCl
C. CuSO4
D. HNO3
5 Redox reactions always involve.
A. Gain of protons
B. Transfer of electrons
C. Loss ofneutrons
D. Nuclear change
6 One Faraday is equl to 
A. 1 C
B. 96500 C
C. 1 J
D. 96500 J
7 The metal depostied at cathode during electolysis of NaCl is.
A. Cl2
B. Na
C. H2
D. Cu
8 If 1 Faraday of elecricity is passed the mass deposited equals.
A. 1 gram equivalent
B. 1 gram
C. 1 mole
D. 1 atm
9 Electrochemical cells convert chemical energy into 
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
10 Which element has Eo = 0.00 V?
A. H+
B. H2
C. SHE
D. All of the above

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