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

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

Question # 2

Electroysis is used in the extration of

Question # 3

The process of purifying copper using electricity is called.

Question # 4

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

Question # 5

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.

Question # 6

Electrochemical equivalent is.

Question # 7

A Daniell cell produces electricity through

Question # 8

In the Hall Heroult process, aluminum is obtained by 

Question # 9

In electolysis, reduction always occurs at

Question # 10

In redox reactions, oxidizing agents are

Question # 11

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

Question # 12

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

Question # 13

Which metal is the best reducing agent.

Question # 14

Which of the followng elements cannot displace hydrogen from acid.

Question # 15

The oxidation number of sulfur in H2SO4 is

Question # 16

A more genative Eo value means the electrode

Question # 17

Electrochemical cells convert chemical energy into 

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

Sr.# Question Answer
1 The principle of measuring DO by Wrinkler's Method is based on.
A. Iodimetry
B. Iodometry
C. Acid Bse titration
D. Complexometry
2 Electroysis is used in the extration of
A. Silver
B. Gold
C. Aluminum
D. Mercury
3 Which of the followig will react with HCl to librerate H2 gas
A. Ag
B.  Mg
C. Au
D. Cu
4 Which of the following changes wold typically lead to an incresse in he rate of electrolysis.
A. Decreasing ghe concentration of the electrolyte
B. Incressing the distance between the electrodes
C. Decressing the surface area of the electrolytic cell
D. Increasing the current passed though the electroytic cell
5 The more positive the standard reduction potential
A. The stronger the reducing agent
B. The weaker the oxidizing agent
C. The stronger the oxidizing agent
D. No effect
6 Whcih metal will displace Cu from CuSO4 Solution.
A. Zn
B. Ag
C. Hg
D. Pb
7 Electrochemical equivalent is.
A. Mass per mole
B. Mass per coulomb
C. Charge per second
D. Current per mass
8 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
9 What is the unit of cell potanetial.
A. ampere
B. Volt
C. Ohm
D. Farad
10 The process of purifying copper using electricity is called.
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry

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