LPUNEST SERIES Chemistry
Chemical Kinetics
5 previous year questions.
Volume: 5 Ques
Yield: Medium
High-Yield Trend
1
2025 1
2024 2
2023 1
2022 Chapter Questions 5 MCQs
01
PYQ 2022
medium
chemistry ID: lpunest-
A molecule AX has two lone pairs over A. Its shape is
1
Tetrahedral
2
Pyramidal
3
Angular
4
Linear
02
PYQ 2023
medium
chemistry ID: lpunest-
The degree of dissociation of the reaction can be related to as
1
2
3
4
03
PYQ 2023
medium
chemistry ID: lpunest-
The half-life of a first order chemical reaction is hrs at . As temperature is increased to , half-life becomes hrs. Determine the half-life of the same reaction at .
1
min
2
min
3
min
4
hrs
04
PYQ 2024
medium
chemistry ID: lpunest-
Consider a successive reaction (all first order)
The incorrect statement is:
1
Concentration of decreases exponentially with time
2
Concentration of both and first increases, reaches maxima, then decreases
3
If and , will be greater than
4
If and , will be greater than
05
PYQ 2025
medium
chemistry ID: lpunest-
In electrophilic aromatic substitution reaction, the nitro group is meta directing because it:
1
decreases electron density at ortho and para positions
2
decreases electron density at meta position
3
increases electron density at meta position
4
increases electron density at ortho and para position