JEE Main · Chemistry · The Solid State
Tetrahedral and Octahedral
JEE Main asked Tetrahedral and Octahedral 2 times in 2 of the 108 shifts Lumi analysed, all in 2021. It belongs to Crystal Lattices, in The Solid State (Chemistry). In 2021 it came in more than one shift of the same year.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 1 of 8
- First asked
- 2021
- the only year
- Pattern
- Gone quiet
- across the analysed shifts
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: 2 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
Numerical value is the usual form. Skill tested: calculation.
- Total voids in given mass of metal
- Octahedral voids per lattice site
Difficulty
2 of the 2 questions had a numerical answer.
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.
- 16 Mar 2021, Shift 2 · Q52Ga (atomic mass 70 u) crystallizes in a hexagonal close packed structure. The total number of voids in 0.581 g of Ga is ________…MediumNumerical value
- 26 Feb 2021, Shift 2 · Q52The number of octahedral voids per lattice site in a lattice is __________. (Rounded off to the nearest integer)EasyNumerical value
Shifts: 26 Feb 2021, Shift 2, 16 Mar 2021, Shift 2.
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
- 14 Bravais Lattices Distributiononce · 2023
- Deriving Formula from Void Occupancyonce · 2023
- BCC Neighbor Distancesonce · 2021
- Empirical Formula from Void Occupationonce · 2021
- FCC Neighbor Distancesonce · 2017