Home
News
Colleges
Courses
Admission
Lectures
Online Test
Past Papers
Date Sheets
Results
Study Abroad
Jobs
Tutors
More
Apps
MCQ's Test For ECAT Chemistry Chapter 10 Electrochemistry
Try The MCQ's Test For ECAT Chemistry Chapter 10 Electrochemistry
-
Total Questions30
-
Time Allowed30
ECAT Chemistry Chapter 10 Electrochemistry
00:00
Question # 1
When electric current is used to carry out non-spontaneous redox, the process is called
Question # 2
In an electrolytic cell, the electrons flow from :
Question # 3
Which of the following yield both hydrogen and chlorine on electrolysis:
Question # 4
Li has the lowest reduction potential while the element with highest reduction potential is
Question # 5
Which of the following is the use of electrolysis?
Question # 6
Which of the substances Na, Hg, S Pt and graphite can be used as electrodes in electrolytic cells having aqueous solution?
Question # 7
The two half cells of a galvanic cell are connected by
Question # 8
The cell which generates electricity as a result of spontaneous oxidation-reduction reaction is called
Question # 9
In the electrolysis of fused bauxite (Al2O32H2O) with fused Cryolite (Na3AlF6) using carbon rods as anode. The product obtained at cathode is
Question # 10
In a Galvanic cell, the electrons flow from
Question # 11
In KO2the oxidation state of oxygen is
Question # 12
If a salt bridge is removed between the two half cells, the voltage
Question # 13
Sodium metal is obtained by the electrolysis of fused NaCl in cell is called
Question # 14
During electrolysis, the reaction that takes place at cathode is :
Question # 15
What are the products electrolysis of aqueous sodium chloride at two electrodes
Question # 16
The standard EMF of Daniel cell is 1.10 volt. The maximum electrical work obtained from the Daniel cell is
Question # 17
When aluminium electrode is coupled with copper electrode in a galvanic cell :
Question # 18
When during electrolysis of a solution of AgNO3, 9650 coulombs of charge pass through the electroplating bath, the mass of silver deposited on the cathode will be
Question # 19
Metals like Fe, Mg, Al, Cr, Zn have more negative reduction potentials that is whey
Question # 20
F2, Cl2, Br2and l2lie below SHE is the Electro chemical series that is why these
Question # 21
Specific conductivity of a solution
Question # 22
During electrolysis, electrons are :
Question # 23
In electrolytic cells, the chemical changes may be :
Question # 24
The oxidation number of free element is always taken to be
Question # 25
When quantity of electricity passed is one faraday then the mass deposited at the electrode is equal to
Question # 26
When aqueous NaCl is electrolyzed, which of the following ions get discharged at anode :
Question # 27
Metals which are above SHE in electrochemical series
Question # 28
Lead accumulator stops discharging current when
Question # 29
Reaction takes place at anode is
Question # 30
96500 C of electricity liberates from CuSO4solution
Top Scorers Of ECAT Chemistry Chapter 10 Electrochemistry MCQ`s Test
-
A Abdul Ghaffar 06 - Jul - 2023 00 Min 03 Sec 120/120 -
U Unknown 08 - Jun - 2023 01 Min 18 Sec 120/120 -
A Abubakar basra 02 - Mar - 2024 05 Min 06 Sec 110/120 -
S Shazi Ansari 06 - Jun - 2024 02 Min 16 Sec 105/120 -
H Huzaifa Asim 28 - May - 2024 09 Min 10 Sec 100/120 -
U Unaiza Usman 22 - Feb - 2024 00 Min 35 Sec 95/120 -
O Omer Farooq 10 - Mar - 2023 09 Min 46 Sec 90/120 -
F Furqan Asif 21 - Mar - 2026 55 Min 45 Sec 80/120 -
A Amjid Ali 13 - Feb - 2024 10 Min 02 Sec 75/120 -
A Asim Akram 25 - Jan - 2024 04 Min 34 Sec 70/120 -
N Nasreen Sardar 08 - Jun - 2023 04 Min 44 Sec 70/120 -
A Arian Ahmed 06 - Mar - 2024 05 Min 06 Sec 65/120 -
A Abdullah Ashraf 01 - May - 2023 11 Min 07 Sec 65/120 -
T Tamshi Sohail 21 - Apr - 2024 13 Min 00 Sec 65/120 -
S Shahzaib Mujahid 23 - Jun - 2023 14 Min 50 Sec 65/120
ECAT Chemistry Chapter 10 Important MCQ's
| Sr.# | Question | Answer |
|---|---|---|
| 1 | Reduction or oxidation potential of standard hydrogen electrode is : |
A. 0.0 Volt
B. 0.8Volt
C. 1.0Volt
D. 1.8Volt
|
| 2 | Fe can displace Cu form CuSO4solution because |
A. Fe is ferromagnetic
B. Fe is below Cu in electrochemical series
C. Fe is above Cu in electrochemical series
D. Fe exists in divalent oxidation state
|
| 3 | Caustic soda is obtained by electrolysis of conc. aqueous solution of NaCI in a cell called |
A. Daniell's cell
B. Nelson's cell
C. Down's cell
D. Voltaic cell
|
| 4 | An electric current is passed through silver nitrate solution using silver electrodes.10.79 g of silver was found to be deposited on the cathode if the same amount of electricity is passed through copper sulphate solution using copper electrodes, the weight of copper deposited on the cathode is |
A. 6.4 g
B. 2.3 g
C. 128.8 g
D. 3.2 g
|
| 5 | The standard EMF of Daniel cell is 1.10 volt. The maximum electrical work obtained from the Daniel cell is |
A. 212.3 kJ
B. 175.4 kJ
C. 106.15 kJ
D. 53.07 kJ
|
| 6 | Which statement is incorrect about standard hydrogen electrode |
A. Its oxidation and reduction potential is zero
B. It consists of Pt wire dipped on 1 molar HCI solution
C. The electrolyte is 1 molar NaOH solution
D. H2gas is passes in it at 1 atmospheric pressure
|
| 7 | Which of the substances Na, Hg, S Pt and graphite can be used as electrodes in electrolytic cells having aqueous solution? |
A. Na, Pt and graphite
B. Na and Hg
C. Pt and graphite only
D. Na and S only
|
| 8 | The process of electrical coating of one metal on another to protect, decorate or to have greater resistance to corrosion is called |
A. Electroplating
B. Electrolysis
C. Conduction
D. Induction
|
| 9 | Prevention of corrosion of iron by Zn coating is called |
A. Galvanization
B. Cathodic protection
C. Electrolysis
D. Photoelectrolysis
|
| 10 |
|
A. Cu
B. H
C. N
D. O
|
Test Questions
Share your comments & questions here
No comments yet. Be the first to comment!