CUET-PG SERIES Chemistry
Electrochemistry
7 previous year questions.
Volume: 7 Ques
Yield: Medium
High-Yield Trend
2
2025 3
2024 2
2023 Chapter Questions 7 MCQs
01
PYQ 2023
medium
chemistry ID: cuet-pg-
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R
Assertion A: The moving boundary method yields more accurate data on transference number than does the Hittorf method.
Reason R: In moving boundary method, indicator electrolyte has same anion as principal electrolyte and is placed at the bottom due to its higher density.
In the light of the above statements, choose the most appropriate answer from the options given below:
Assertion A: The moving boundary method yields more accurate data on transference number than does the Hittorf method.
Reason R: In moving boundary method, indicator electrolyte has same anion as principal electrolyte and is placed at the bottom due to its higher density.
In the light of the above statements, choose the most appropriate answer from the options given below:
1
Both A and R are correct and R is the correct explanation of A
2
Both A and R are correct but R is NOT the correct explanation of A
3
A is correct but R is not correct
4
A is not correct but R is correct
02
PYQ 2023
medium
chemistry ID: cuet-pg-
Given below are two statements:
Statement I: The conversion of diamond to graphite at room temperature and pressure is spontaneous (ΔG=-2.90 kJ mol-1)
Statement II: The electrical conductivity of graphite perpendicular to the plane is low, whereas parallel to the plane is very high.
In the light of the above statements, choose the most appropriate answer from the options given below:
Statement I: The conversion of diamond to graphite at room temperature and pressure is spontaneous (ΔG=-2.90 kJ mol-1)
Statement II: The electrical conductivity of graphite perpendicular to the plane is low, whereas parallel to the plane is very high.
In the light of the above statements, choose the most appropriate answer from the options given below:
1
Both Statement I and Statement II are correct
2
Both Statement I and Statement II are incorrect
3
Statement I is correct but Statement II is incorrect
4
Statement I is incorrect but Statement II is correct
03
PYQ 2024
medium
chemistry ID: cuet-pg-
The ionic strength of a solution which is 0.1 molal in NaCl and 0.01 molal in calcium chloride is (assuming complete dissociation)
1
0.13 molal
2
0.26 molal
3
0.11 molal
4
0.056 molal
04
PYQ 2024
medium
chemistry ID: cuet-pg-
From the following half-cell reactions:
The standard potential of the cell
will be:
The standard potential of the cell
will be:
1
-0.42 V
2
1.10 V
3
0.42 V
4
0.59 V
05
PYQ 2024
easy
chemistry ID: cuet-pg-
The reduction potential of hydrogen half-cell will be negative if
1
2
3
4
06
PYQ 2025
medium
chemistry ID: cuet-pg-
According to the moving boundary method, the transport number of the cation of the principle electrolyte is calculated using the formula Given: is the length by which the boundary has moved. The electrolyte of concentration is kept in a long vertical tube with area of cross section .
1
2
3
4
07
PYQ 2025
medium
chemistry ID: cuet-pg-
Consider the concentration cell In concentration cells, the magnitude of liquid junction potential depends upon the transport number of cations and anions. For cells with , then the value of is negative when:
1
2
3
4