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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Electrochemistry

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Question # 1

The experimental determination of Avogadro's numebr through electrolysis typically involves measuring 

Question # 2

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

Question # 3

Electrolysis of CuSO4  using copper eletrodes results in

Question # 4

A salt bridge is usually made from

Question # 5

Which of the followig will react with HCl to librerate H2 gas

Question # 6

Cell potential is the differecne between 

Question # 7

Redox reactions always involve.

Question # 8

The more positive the standard reduction potential

Question # 9

The reaction at the cathode is alwyas

Question # 10

A more genative Eo value means the electrode

Question # 11

In electolysis, reduction always occurs at

Question # 12

Which of the following is not a use of electrochemistry

Question # 13

Electrochemical equivalent is.

Question # 14

Down cell is used for extractio of.

Question # 15

Which of the following metals would most raadily displace hydrogen gas from dilute acids.

Question # 16

Which species is educed in the followig rection ? Zn + Cu --------- Zn

Question # 17

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

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

Sr.# Question Answer
1 Electroyte in electroplating of silver
A. AgNo3
B. NaCl
C. CuSO4
D. HNO3
2 Which of the following is not a use of electrochemistry
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
3 Electroysis requires.
A. Redox reaction
B. Spontaneous cell
C. Non spontaneous reaction
D. Combustion 
4 Electroysis is used in the extration of
A. Silver
B. Gold
C. Aluminum
D. Mercury
5 In a galvanic cell, the anode is
A. Negaive and site of oxidation 
B. Postive and site of oxidation 
C. Negative and site of reduction 
D. Postive and site of reduction
6 If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have
A. CuSO4 Solution
B. Zn SO4 Solution
C. Cu Ions
D. Zn Solid
7 Electrons in a galvanic cell flow from
A. Anode to cathode
B. Cathode to anode
C. Salt bridge to cathode
D. Elecrolyte to anode
8 The numebr of coulombs required to deposit 1 mole of Ag
A. 96500 C
B. 193000 C241250 C
C. 1 C
D. 241250 C
9 In the Hall Heroult process, aluminum is obtained by 
A. Chemical reaction
B. Thermal decomposition 
C. Elelctrolysis of alumina
D. Roasting and leaching
10 Redox reactions always involve.
A. Gain of protons
B. Transfer of electrons
C. Loss ofneutrons
D. Nuclear change

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