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

Question # 2

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

Question # 3

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

Question # 4

Down cell is used for extractio of.

Question # 5

In the Hall Heroult process, aluminum is obtained by 

Question # 6

A Daniell cell produces electricity through

Question # 7

Cell potential is the differecne between 

Question # 8

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

Question # 9

Which of the followig will react with HCl to librerate H2 gas

Question # 10

Electroplating involves.

Question # 11

Electrochemical cells convert chemical energy into 

Question # 12

The anode is electrolysis of molten NaCl is

Question # 13

Electroyte in electroplating of silver

Question # 14

Which of the following is not a use of electrochemistry

Question # 15

The reducing agent in a redox reaction

Question # 16

A salt bridge is usually made from

Question # 17

Electroysis of brine produces.

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

Sr.# Question Answer
1 Standard hydrogen electrode is assigned potential of.
A. 1.0 V
B. 0.5 V
C. 0.0 V
D. -1.0 V
2 Electrochemical cells convert chemical energy into 
A. Electrila energy
B. Heat
C. Light
D. Nuclear energy
3 Which of the followng elements cannot displace hydrogen from acid.
A. Zn
B. Cu
C. AI
D. Fe
4 In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
A. Anions
B. Cations
C. Eletrons
D. Protons
5 Which of the following metals would most raadily displace hydrogen gas from dilute acids.
A. Copper
B. Silver
C. Magnesium
D. Platinum
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 The process of purifying copper using electricity is called.
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
8 One Faraday is equl to 
A. 1 C
B. 96500 C
C. 1 J
D. 96500 J
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 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

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