KEAM SERIES Chemistry
Order Of Reaction
3 previous year questions.
Volume: 3 Ques
Yield: Medium
High-Yield Trend
1
2025 1
2021 1
2011 Chapter Questions 3 MCQs
01
PYQ 2011
medium
chemistry ID: keam-201
The rate of the reaction products, at the initial concentration of is nine times its rate at another initial concentration of . The order of the reaction is
1
2
3
4
02
PYQ 2021
medium
chemistry ID: keam-202
Choose the correct set of reactions which follow first order kinetics:
(i) Thermal decomposition of HI on gold surface.
(ii) Thermal decomposition of at constant volume.
(iii) Hydrogenation of ethene.
(iv) Decomposition of on a hot Pt surface.
(v) Thermal decomposition of at constant volume.
(i) Thermal decomposition of HI on gold surface.
(ii) Thermal decomposition of at constant volume.
(iii) Hydrogenation of ethene.
(iv) Decomposition of on a hot Pt surface.
(v) Thermal decomposition of at constant volume.
1
i, ii, iii
2
i, iii, iv
3
i, iv, v
4
ii, iv, v
5
ii, iii, v
03
PYQ 2025
easy
chemistry ID: keam-202
The following data were obtained for the reaction: at different concentrations: 
The rate law of this reaction is:
1
Rate = k[NO][O2]2
2
Rate = k[NO][O2]
3
Rate = k[NO]2[O2]2
4
Rate = k[NO]2[O2]
5
Rate = k[NO]2[O2]3