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

If Eo cell is +1.10 V , the reactio is

Question # 2

Electrons in a galvanic cell flow from

Question # 3

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

Question # 4

The numebr of coulombs required to deposit 1 mole of Ag

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

In redox reactions, oxidizing agents are

Question # 7

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

Question # 8

Electroyte in electroplating of silver

Question # 9

Electroysis of brine produces.

Question # 10

Electroplating involves.

Question # 11

The principle of measuring DO by Wrinkler's Method is based on.

Question # 12

Which of the following is not a use of electrochemistry

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

The oxidation number of sulfur in H2SO4 is

Question # 17

Electroysis requires.

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

Sr.# Question Answer
1 Which of the following is not a use of electrochemistry
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
2 Electrolysis of CuSO4  using copper eletrodes results in
A. Increase in eletolyte concentration 
B. Decrease in Cu2+ concentration 
C. No change in electrolyte composition
D. Formation of new compound
3 Electrochemical cells convert chemical energy into 
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
4 Which of the followng elements cannot displace hydrogen from acid.
A. Zn
B. Cu
C. AI
D. Fe
5 A more genative Eo value means the electrode
A. Is a stong oxidizing agent
B. Is a strong reducing agent
C. Is neurtal
D. Has high electronegagtivity 
6 Electrochemical sereis helps in predicting.
A. Rate of reaction
B. Type of bond
C. Dirction of redox reactions
D. Heat released
7 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
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 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
10 Which component maintains elecrical neutrality in an electronchemical cell
A. Salt bridge
B. Voltmeter
C. Electrolyte
D. Electrodes

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