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CUET-UG SERIES
Chemistry

Electrochemistry

17 previous year questions.

Volume: 17 Ques
Yield: Medium

High-Yield Trend

1
2025
2
2024
11
2023
3
2022

Chapter Questions
17 MCQs

01
PYQ 2022
medium
chemistry ID: cuet-ug-

How much charge is required for the reduction of 1 mol of MnO-4 to Mn2+ ?

1

1 F

2

5 F

3

3 F

4

6 F

02
PYQ 2022
easy
chemistry ID: cuet-ug-

Among the following statements related to ionic conductance. choose the correct statements.

A. Ionic conductance depends on the nature of electrolyte
B. Ionic conductance is due to the movements of electrons
C. Ionic conductance is also called electronic conductance
D. Ionic conductance depends on temperature
E. Ionic conductance also depends on the nature of solvent.

Choose the correct answer from the options given below:

1

A, B and C only

2

B, C and D only

3

B, C and E only

4

A, D and E only

03
PYQ 2022
medium
chemistry ID: cuet-ug-
for , and are and respectively. Calculate for
1
2
3
4
04
PYQ 2023
easy
chemistry ID: cuet-ug-
The cell reaction occurring at anode in the electrolysis of aqueous NaCl solution is:
1
2
3
4
05
PYQ 2023
hard
chemistry ID: cuet-ug-
The quantity of charge required to obtain 2 mol of Mn from MnO is:
1
2 F
2
10 F
3
5 F
4
1 F
06
PYQ 2023
hard
chemistry ID: cuet-ug-
During electrolysis of acidified water. 2.8 Litre of oxygen gas is released (at STP). The charge passed through the anode is -
1
48250 C
2
24125 C
3
96500 C
4
361875 C
07
PYQ 2023
medium
chemistry ID: cuet-ug-
Decreasing order of reducing power of the given species as per their standard reduction potential is :
A. -2.36
B. +0.54
C. +1.23
D. -0.74
E. + 1.81
Choose the correct answer from the options given below:
1
A>D>E>B>C
2
A>D>B>C>E
3
E>C>A>B>D
4
E>C>B>D>A
08
PYQ 2023
medium
chemistry ID: cuet-ug-
A solution of CuSO4 is electrolysed for 10 min with a current of 1.5 A. What is the mass of copper deposited at the cathode (molar mass of Cu= 63 g) (1F = 96487c).
1
2.93 g
2
3.4 g
3
1.9 g
4
0.2938 g
09
PYQ 2023
medium
chemistry ID: cuet-ug-
Which of the following relationships are not correct ?
(A)
(B)
(C) Cell constant =
(D)
(E)
Choose the correct answer from the options given below:
1
(B), (C), (D) only
2
(A), (B), (D) only
3
(B), (C), (D), (E) only
4
(A), (C), (E) only
10
PYQ 2023
medium
chemistry ID: cuet-ug-
Given:





Choose the correct order :
(A) Ag (B) Ag (C) Ag > Hg > Cr > Mg > K (decreasing oxidising power)
(D) Hg > Cr > Ag > K > Mg (increasing reactivity)
(E) K > Mg > Cr > Hg > Ag (decreasing reactivity order)
Choose the correct answer from the options given below:
1
(A), (C) and (E) only
2
(B), (C) and (E) only
3
(C), (D) and (E) only
4
(A) and (B) only
11
PYQ 2023
medium
chemistry ID: cuet-ug-
The standard reduction potential for Sn /Sn is +0.15 V and for Cr /Cr is -0.74 V. These two half-cells, coupled in their standard states, are connected to make a cell. The galvanic cell can be correctly represented by:
1
Sn (aq) | Sn (aq) || Cr (aq) | Cr(s)
2
Sn (aq) | Sn (aq) || Cr (aq) | Cr(s)
3
Cr(s) | Cr (aq) || Sn (aq) | Sn (aq)
4
Cr(s) | Cr (aq) | Sn (aq) || Sn (aq)
12
PYQ 2023
medium
chemistry ID: cuet-ug-
In the formation of a leclanche cell, the space between electrodes is filled with:
(A) ZnCl2
(B) NH4CI
(C) AlCl3
(D) ZnS
(E) NH4NO3
Choose the correct answer from the options given below:
1
(A) and (E) only
2
(A) and (B) only
3
(C) and (D) only
4
(D) and (E) only
13
PYQ 2023
medium
chemistry ID: cuet-ug-
Find the value of in the missing link in following diagram
Find the value of E in the missing link in following diagram
1
2
3
4
14
PYQ 2023
medium
chemistry ID: cuet-ug-

Match List - I with List - II

Choose the correct answer from the options given below: 
 

1
(A)-(I), (B)-(IV), (C)-(III), (D)-(II)
2
(A)-(II), (B)-(I), (C)-(IV), (D)-(III)
3
(A)-(III), (B)-(IV), (C)-(II), (D)-(I)
4
(A)-(IV), (B)-(I), (C)-(II), (D)-(III)
15
PYQ 2024
hard
chemistry ID: cuet-ug-
What is the numerical value of one Faraday in Coulombs?
1
96587
2
96487
3
99500
4
6.023
16
PYQ 2024
easy
chemistry ID: cuet-ug-
Read the following passage and answer the next five questions based on it.

Battery or cell converts chemical energy of the redox reaction to electrical energy. In fuel cells (a galvanic cell), the chemical energy of combustion of fuels like H2, ethanol, etc., is directly converted to electrical energy. In a fuel cell, H2 and O2 react to produce electricity, where H2 gas is oxidized at the anode and oxygen is reduced at the cathode, and the reactions involved are:

Anode reaction: H2 + 2OH- → 2H2O + 2e-

Cathode reaction: O2 + 2H2O + 4e- → 4OH-

67.2 L of H2 at STP reacts in 15 minutes.

17
PYQ 2025
easy
chemistry ID: cuet-ug-
In an electrochemical cell, the standard electrode potential of Zn /Zn is and that of Cu /Cu is . What is the standard EMF of the cell?
1
1.10 V
2
-1.10 V
3
0.42 V
4
-0.42 V

About Electrochemistry - CUET-UG

Electrochemistry is a vital chapter for CUET-UG aspirants. Mastering the concepts covered in this chapter is essential for securing a top rank.

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