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 activity series of meals arranges metals in order of their.

Question # 2

The oxidation number of sulfur in H2SO4 is

Question # 3

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 # 4

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

Question # 5

The metal depostied at cathode during electolysis of NaCl is.

Question # 6

Electroyte in electroplating of silver

Question # 7

In the Hall Heroult process, aluminum is obtained by 

Question # 8

Which element has Eo = 0.00 V?

Question # 9

The process of purifying copper using electricity is called.

Question # 10

Electroysis requires.

Question # 11

A more genative Eo value means the electrode

Question # 12

Electrochemical cells convert chemical energy into 

Question # 13

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

Question # 14

A Daniell cell produces electricity through

Question # 15

Standard electrode potential is measured under

Question # 16

Down cell is used for extractio of.

Question # 17

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

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

Sr.# Question Answer
1 Down cell is used for extractio of.
A. Zinc
B. Iron
C. Sodium
D. Aluminum
2 Electrochemical equivalent is.
A. Mass per mole
B. Mass per coulomb
C. Charge per second
D. Current per mass
3 The salt brige allows tranfer of ........in Zn -Cu voltaic cell
A. SO4 Ions
B. Zn2 ions
C. Both 
D. None of thes
4 The oxidation number of sulfur in H2SO4 is
A. +2
B. +4
C. +6
D. +8
5 The reaction at the cathode is alwyas
A. Oxidation 
B. Neutral
C. Reduction 
D. Ionization 
6 The reducing agent in a redox reaction
A. Gains electrons
B. Loss electrons
C. Acceptw protons
D. Donates protons
7 The activity series of meals arranges metals in order of their.
A. Atomic mass
B. Density
C. Ease of oxidation
D. Ease of reduction 
8 The anode is electrolysis of molten NaCl is
A. Na+
B. Cl-
C. Na
D. H-
9 Oxidation numebrof oxygen in H2O
A. 1
B. -2
C. 0
D. +1
10 In electroplating the object to be plated is connected to
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte

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