JEE Main · Chemistry · Units and Measurements
Units of VdW Constants
JEE Main asked Units of VdW Constants 2 times in 2 of the 108 shifts Lumi analysed, in 2021 and 2024. It belongs to Real Gases, in Units and Measurements (Chemistry). The longest wait between two years asking it was 3 years.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2021
- last in 2024
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2021 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 0 in 12 shifts · 2021: 1 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Single correct is the usual form. Skill tested: application.
- Dimension of physical quantity from formula
- Unit of van der waals constant
Difficulty
Every question was multiple choice.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 5 Apr 2024, Shift 2 · Q31What is the dimensional formula of in the equation , where letters have their usual meaning.MediumSingle correct
- 27 Aug 2021, Shift 1 · Q31The unit of the van der Waals gas equation parameter ‘a’ in…EasySingle correct
Shifts: 27 Aug 2021, Shift 1, 5 Apr 2024, Shift 2.
Same topic
Other ideas in Real Gases
Real Gases has 5 ideas JEE Main has asked; 2 of them came up in more than one question.
- Compressibility Factor Z2× · 2023
- Predicting 'a' from Molecular Structureonce · 2023
- Gas Liquefactiononce · 2022
- High Pressure VdW Limitonce · 2021