CUET-UG SERIES Chemistry
Rate Of A Chemical Reaction
4 previous year questions.
Volume: 4 Ques
Yield: Medium
High-Yield Trend
2
2025 1
2024 1
2023 Chapter Questions 4 MCQs
01
PYQ 2023
medium
chemistry ID: cuet-ug-
Rate of a reaction is of 2nd order w.r.t A and Ist order w.r.t B. If concentration of A is halved and concentration of B becomes of initial concentration. The rate of reaction becomes :
1
12 times
2
times
3
6 times
4
times
02
PYQ 2024
medium
chemistry ID: cuet-ug-
Which factor in the Arrhenius equation corresponds to the fraction of molecules having kinetic energy greater than activation energy?
1
ln k
2
ln A
3
RT
4
e-Ea/RT
03
PYQ 2025
hard
chemistry ID: cuet-ug-
Arrange the following compounds in increasing order of their acidic strength: (A) 3-nitrophenol
(B) 3,5-Dinitrophenol
(C) 2,4,6-Trinitrophenol
(D) Phenol
(B) 3,5-Dinitrophenol
(C) 2,4,6-Trinitrophenol
(D) Phenol
1
(D), (C), (B), (A)
2
(C), (A), (B), (D)
3
(D), (A), (B), (C)
4
(A), (B), (C), (D)
04
PYQ 2025
easy
chemistry ID: cuet-ug-
The speed at which a chemical reaction takes place is called the rate of reaction. The rate of reaction depends on various factors like concentration of the reactants, temperature, etc. The relation between the rate of reaction and the concentration of reacting species is represented by the equation , where and are the order of the reaction with respect to the reactants A and B, respectively. The overall order of the reaction is . The rate of reaction can also be increased by the use of a catalyst which provides an alternate pathway of lower activation energy. It increases the rate of forward and backward reactions to an equal extent. It does not alter the Gibbs energy of the reaction.