NEET UG · Chemistry · Chemical Kinetics
First Order 99.9% Completion Shortcut
NEET asked First Order 99.9% Completion Shortcut once in 2017–2026, in 2025. It belongs to Chemical Kinetics (Chemistry).
Updated 2026-10-08
- Times asked
- 1
- in 2017–2026
- Papers
- 1
- of 10
- First asked
- 2025
- the only time
- Chance next paper
- 6%
- calibrated historical rate
Questions on this idea, by paper
2017–2026. 2025.
How NEET framed it
Numerical is the usual form. Skill tested: calculation.
- Numerical
Chance asked next paper 6%
Every question
The question
From the official NEET UG papers, newest first. Open one for the full question, the options and the official answer.
- 2025 Q56If the half-life () for a first order reaction is 1 minute, then the time required for 99.9% completion of the reaction is…Numerical · Easy
Papers: NEET 2025.
Same topic
Other ideas in Chemical Kinetics
Chemical Kinetics has 14 ideas NEET has asked; 4 of them came up in more than one question. The 12 most asked are below.
- First Order Integrated Rate Law4× · 2025
- Arrhenius Plot Interpretation3× · 2026
- Arrhenius Equation at Two Temperatures2× · 2024
- General Half-Life Formula2× · 2018
- Zero Order Completion Timeonce · 2026
- Arrhenius Equation Parametersonce · 2023
- Rate Law and Order Determinationonce · 2023
- Rate vs Concentration Graphsonce · 2022
- Reaction Coordinate Diagramsonce · 2021
- Collision Theory Parametersonce · 2020
- First Order Percentage Completion Time Shortcutsonce · 2019
- Rate of Appearance and Disappearanceonce · 2019