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 oxidation number of sulfur in H2SO4 is

Question # 2

Electrochemical equivalent 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

A more genative Eo value means the electrode

Question # 5

Whcih metal will displace Cu from CuSO4 Solution.

Question # 6

Electroysis of brine produces.

Question # 7

Electrochemical sereis helps in predicting.

Question # 8

Down cell is used for extractio of.

Question # 9

Electroyte in electroplating of silver

Question # 10

Which species is educed in the followig rection ? Zn + Cu --------- Zn

Question # 11

Which element has Eo = 0.00 V?

Question # 12

If Eo cell is +1.10 V , the reactio is

Question # 13

Which component maintains elecrical neutrality in an electronchemical cell

Question # 14

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

Question # 15

Oxidation numebrof oxygen in H2O

Question # 16

Standard electrode potential is measured under

Question # 17

One Faraday is equl to 

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

Sr.# Question Answer
1 Redox reactions always involve.
A. Gain of protons
B. Transfer of electrons
C. Loss ofneutrons
D. Nuclear change
2 The numebr of coulombs required to deposit 1 mole of Ag
A. 96500 C
B. 193000 C241250 C
C. 1 C
D. 241250 C
3 Faradya's First Law states tass deposited is diretly proportional tohat m
A. Time
B. Voltage
C. Resistance
D. Quantity of electricity passed
4 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
5 Electrolysis is the process of 
A. Chemical energy into electrical
B. Electrical energy into chemical
C. Heat energy into mechanical
D. Mechanical energy into chemical
6 Electrochemical equivalent is.
A. Mass per mole
B. Mass per coulomb
C. Charge per second
D. Current per mass
7 If Eo cell is +1.10 V , the reactio is
A. Spontaneous
B. Non spontaneous
C. At equibrium
D. Endothermic only
8 Whcih metal will displace Cu from CuSO4 Solution.
A. Zn
B. Ag
C. Hg
D. Pb
9 The reducing agent in a redox reaction
A. Gains electrons
B. Loss electrons
C. Acceptw protons
D. Donates protons
10 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

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