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

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

Question # 2

Oxidation numebrof oxygen in H2O

Question # 3

The reducing agent in a redox reaction

Question # 4

Which metal is the best reducing agent.

Question # 5

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

Question # 6

The numebr of coulombs required to deposit 1 mole of Ag

Question # 7

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

Question # 8

Which element has Eo = 0.00 V?

Question # 9

In the Hall Heroult process, aluminum is obtained by 

Question # 10

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

Question # 11

Which component maintains elecrical neutrality in an electronchemical cell

Question # 12

Electrolysis of CuSO4  using copper eletrodes results in

Question # 13

The process of coating a metal with zinc is called.

Question # 14

Electroplating involves.

Question # 15

The anode is electrolysis of molten NaCl is

Question # 16

Electroysis is used in the extration of

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 What is the unit of cell potanetial.
A. ampere
B. Volt
C. Ohm
D. Farad
2 In electolysis, reduction always occurs at
A. Anode
B. Cathode
C. Salt bridge
D. Electroyte
3 In electroplating the object to be plated is connected to
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte
4 Electrolysis is the process of 
A. Chemical energy into electrical
B. Electrical energy into chemical
C. Heat energy into mechanical
D. Mechanical energy into chemical
5 The salt brige allows tranfer of ........in Zn -Cu voltaic cell
A. SO4 Ions
B. Zn2 ions
C. Both 
D. None of thes
6 The activity series of meals arranges metals in order of their.
A. Atomic mass
B. Density
C. Ease of oxidation
D. Ease of reduction 
7 In the Hall Heroult process, aluminum is obtained by 
A. Chemical reaction
B. Thermal decomposition 
C. Elelctrolysis of alumina
D. Roasting and leaching
8 The cathode in an electrolytic cell is.
A. Positive electrode
B. Negative electrode
C. Neutral elecrode
D. None
9 Down cell is used for extractio of.
A. Zinc
B. Iron
C. Sodium
D. Aluminum
10 Which of the following is not a use of electrochemistry
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining

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