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

Down cell is used for extractio of.

Question # 2

Which metal is the best reducing agent.

Question # 3

An Increase in temperature generally

Question # 4

In redox reactions, oxidizing agents are

Question # 5

In an electrochecmial cell, which ion migrates to cathode through the salt bridge.

Question # 6

Which element has Eo = 0.00 V?

Question # 7

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

Question # 8

Electroysis is used in the extration of

Question # 9

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

Question # 10

The activity series of meals arranges metals in order of their.

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

The process of purifying copper using electricity is called.

Question # 15

The cathode in an electrolytic cell is.

Question # 16

The metal depostied at cathode during electolysis of NaCl is.

Question # 17

Cell potential is the differecne between 

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

Sr.# Question Answer
1 An Increase in temperature generally
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
2 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.
A. Mass numebr of the ion
B. One mole of electrons being transferred
C. Avogadro's nmber of ions being discharged
D. Standrd electrode potentil of the metal iion
3 A Daniell cell produces electricity through
A. Electrolysis
B. Radioactivity
C. Spontaneous redox reaction
D. Endothermic reaction
4 One Faraday is equl to 
A. 1 C
B. 96500 C
C. 1 J
D. 96500 J
5 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
6 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
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 Which of the following is not a use of electrochemistry
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
9 The salt brige allows tranfer of ........in Zn -Cu voltaic cell
A. SO4 Ions
B. Zn2 ions
C. Both 
D. None of thes
10 Electroplating involves.
A. Electrolysis for coating
B. Spontaneous oxidation 
C. Redox without electordes
D. Thermolysis

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