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

An Increase in temperature generally

Question # 2

The anode is electrolysis of molten NaCl is

Question # 3

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

Question # 4

Electrons in a galvanic cell flow from

Question # 5

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

Question # 6

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

Question # 7

If salt bridge in not used, between twohalf cells in a Galvanic cell, than the voltage.

Question # 8

Which metal is the best reducing agent.

Question # 9

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

Question # 10

Standard hydrogen electrode is assigned potential of.

Question # 11

The reducing agent in a redox reaction

Question # 12

In electroplating the object to be plated is connected to

Question # 13

Electrochemical equivalent is.

Question # 14

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

Question # 15

Cell potential is the differecne between 

Question # 16

Electroplating involves.

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 Down cell is used for extractio of.
A. Zinc
B. Iron
C. Sodium
D. Aluminum
2 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
3 Which of the followig will react with HCl to librerate H2 gas
A. Ag
B.  Mg
C. Au
D. Cu
4 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.
5 Which component maintains elecrical neutrality in an electronchemical cell
A. Salt bridge
B. Voltmeter
C. Electrolyte
D. Electrodes
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 The process of purifying copper using electricity is called.
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry
8 The numebr of coulombs required to deposit 1 mole of Ag
A. 96500 C
B. 193000 C241250 C
C. 1 C
D. 241250 C
9 Which of the followng elements cannot displace hydrogen from acid.
A. Zn
B. Cu
C. AI
D. Fe
10 If 1 Faraday of elecricity is passed the mass deposited equals.
A. 1 gram equivalent
B. 1 gram
C. 1 mole
D. 1 atm

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