ExamsMy practice
1
If the half life of a first order reaction is 6.93 minutes then the time required for completion of 99% of the reaction will be minutes. (Given : log 2 = 0.3010)
JEE Main 2026 (Online) 5th April Morning Shift
Chemical Kinetics
Previous year questions with solutions · 2025 – 2026
44Questions
31Papers covered
5.68% ↑0.3%Weightage in 2026
’25
’26
Year-wise statistics questions · papers · average per paper · weightage
| Year | Questions | Papers | Avg / paper | Weightage |
|---|---|---|---|---|
| 2026 | 27 | 19 | 1.4 | 5.68% ↑0.3% |
| 2025 | 17 | 12 | 1.4 | 5.67% |
2
For a first order reaction A B arrayll t/min & [A]/M \ 0 & 0.6500 \ x & 0.0650 \ 20 & 0.00065 array x = min. (Nearest integer)
JEE Main 2026 (Online) 4th April Evening Shift