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

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

Question # 2

The cathode in an electrolytic cell is.

Question # 3

Standard electrode potential is measured under

Question # 4

A Daniell cell produces electricity through

Question # 5

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

Question # 6

Whcih metal will displace Cu from CuSO4 Solution.

Question # 7

Standard hydrogen electrode is assigned potential of.

Question # 8

If Eo cell is +1.10 V , the reactio is

Question # 9

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

Question # 10

The oxidation number of sulfur in H2SO4 is

Question # 11

Electrochemical cells convert chemical energy into 

Question # 12

Electrolysis of CuSO4  using copper eletrodes results in

Question # 13

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

Question # 14

In the Hall Heroult process, aluminum is obtained by 

Question # 15

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

Question # 16

Electrochemical equivalent is.

Question # 17

Which of the followng elements cannot displace hydrogen from acid.

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

Sr.# Question Answer
1 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
2 In electolysis, reduction always occurs at
A. Anode
B. Cathode
C. Salt bridge
D. Electroyte
3 In electroplating the object to be plated is connected to
A. Anode
B. Cathode
C. Both electordes
D. Electrolyte
4 The salt brige allows tranfer of ........in Zn -Cu voltaic cell
A. SO4 Ions
B. Zn2 ions
C. Both 
D. None of thes
5 If 1 Faraday of elecricity is passed the mass deposited equals.
A. 1 gram equivalent
B. 1 gram
C. 1 mole
D. 1 atm
6 Which of the following is not a use of electrochemistry
A. Manufacture of explosives
B. Electroplating
C. Extractio of metals
D. Electrorefining
7 Standard electrode potential is measured under
A. 100 oC and 1 atm
B. 0 oC and 1 M concentration 
C. 25 oC and 1 M concentration 
D. 100 oC and 1 M concentration 
8 An Increase in temperature generally
A. No Effect
B. Increases cell voltage
C. Decreases ell voltage
D. Depends on pressure
9 In an electrochecmial cell, which ion migrates to cathode through the salt bridge.
A. Anions
B. Cations
C. Eletrons
D. Protons
10 The process of purifying copper using electricity is called.
A. Electrolysis
B. Electrplating
C. Electrorefinging
D. Electrogavimetry

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