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

In the Hall Heroult process, aluminum is obtained by 

Question # 2

The numebr of coulombs required to deposit 1 mole of Ag

Question # 3

Electroysis requires.

Question # 4

Electrons in a galvanic cell flow from

Question # 5

In redox reactions, oxidizing agents are

Question # 6

In a galvanic cell, the anode is

Question # 7

Whcih metal will displace Cu from CuSO4 Solution.

Question # 8

Electroysis of brine produces.

Question # 9

If Zn -Cu galvanic cell works ideally after complete discharge, both comparatments will have

Question # 10

The process of coating a metal with zinc is called.

Question # 11

Which element has Eo = 0.00 V?

Question # 12

Electroysis is used in the extration of

Question # 13

In electroplating the object to be plated is connected to

Question # 14

The anode is electrolysis of molten NaCl is

Question # 15

The salt brige allows tranfer of ........in Zn -Cu voltaic cell

Question # 16

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

Question # 17

The process of purifying copper using electricity is called.

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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 A Daniell cell produces electricity through
A. Electrolysis
B. Radioactivity
C. Spontaneous redox reaction
D. Endothermic reaction
3 If Eo cell is +1.10 V , the reactio is
A. Spontaneous
B. Non spontaneous
C. At equibrium
D. Endothermic only
4 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
5 In electroplating the object to be plated is connected to
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte
6 Standard electrode potential is measured under
A. 100 oC and 1 atm
B. 0 oC and 1 M concentration 
C. 25 oC and 1 M concentration 
D. 100 oC and 1 M concentration 
7 Which of the followig will react with HCl to librerate H2 gas
A. Ag
B.  Mg
C. Au
D. Cu
8 A positive value for the standared electrode potential of a metal ion metal half cell indicate that
A. The metal is stong reducing agent
B. The metal ion is redily oxidized
C. The metal ion is redily reduced
D. The metal will readily displace hydrogen from dilute acids.
9 Which component maintains elecrical neutrality in an electronchemical cell
A. Salt bridge
B. Voltmeter
C. Electrolyte
D. Electrodes
10 In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
A. Anions
B. Cations
C. Eletrons
D. Protons

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