JEE Main · Chemistry · The Solid State
Empirical Formula from Void Occupation
JEE Main asked Empirical Formula from Void Occupation once in the 108 shifts Lumi analysed, on 18 Mar 2021, Shift 1. It belongs to Crystal Lattices, in The Solid State (Chemistry).
Updated 2026-10-24
- Times asked
- 1
- in 1 shift
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- asked once so far
Questions on this idea a shift, by year
2017–2026. Asked in 2021. 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: 0 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: calculation.
- Formula from void occupancy
Difficulty
The question was multiple choice.
Every question
The question
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
Shift: 18 Mar 2021, Shift 1.
Same topic
Other ideas in Crystal Lattices
Crystal Lattices has 9 ideas JEE Main has asked; 4 of them came up in more than one question.
- Unit Cell Density9× · 2023
- Edge-Radius Relationships4× · 2023
- Empirical Formula from Void Occupancy4× · 2022
- Tetrahedral and Octahedral2× · 2021
- 14 Bravais Lattices Distributiononce · 2023
- Deriving Formula from Void Occupancyonce · 2023
- BCC Neighbor Distancesonce · 2021
- FCC Neighbor Distancesonce · 2017