NEET UG · Chemistry · The Solid State
The Solid State: NEET previous year questions
This topic’s chapter, The Solid State, is not in the NEET UG 2026 syllabus. It had 10 questions from 2017 to 2023; they are kept here for reference.
- Asked in 10 years
- 10
- about 0.9 per paper
- Years asked
- 7/10
- last asked 2023
- Syllabus
- Dropped
- not in NEET UG 2026
- Last asked
- 2023
- 3 papers ago
Key findings
- 01
Asked in 7 of 10 papers, 10 questions in all: #83 of 204 topics by ten-year total. Last asked in 2023.
- 02
56% of its questions since 2018 tested an idea never asked before; none repeated an idea from the year before.
- 03
The most repeated idea is Number and Location of Voids, asked 3 times (2021, 2023), usually as “numerical”.
- 04
NEET has asked 0 of the 7 ideas in this topic; 0 have never been asked, directly or indirectly.
- 05
Mostly asked as one-line MCQ (50%); 10% easy, 10% hard, and down from 1.4 to 0.0 questions a paper since 2024.
Questions per year
- Up to 2023
- 1.4
- per paper
- Since 2024
- 0.0
- -1.4
- Usual gap
- 1.0 yrs
- between papers asking it
- Swing
- ±0.7
- questions, year to year
How it is asked
Difficulty, format and skill
Across all 10 questions on The Solid State since 2017.
Difficulty
QUESTIONS- Easy1 · 10%
- Medium8 · 80%
- Hard1 · 10%
Format
SHARE- One-line MCQ · 5 Q50%
- Numerical · 4 Q40%
- Assertion–reason · 1 Q10%
Skill tested
SHARE- Application · 4 Q40%
- Recall · 3 Q30%
- Calculation · 2 Q20%
- Concept · 1 Q10%
Repeats
New idea, or one asked before?
Each column is a paper. Blue questions tested an idea NEET had not asked before; navy ones went back to an idea from an earlier paper. 2017 is the first paper, so everything in it counts as new.
- Idea asked for the first time
- Idea asked in an earlier paper
Coverage of the topic
NEET has asked 0 of the 7 ideas in this topic. 0 have never been asked yet.
- Asked directly0 · 0%
- Touched inside another question7 · 100%
- Never asked0 · 0%
Ideas come from Lumi’s syllabus map of NCERT. A never-asked idea is not a safe skip: most new questions come from exactly these.
Drill down
Idea, year, question
Every idea NEET tested in this topic, with its ten papers. Open one to read the questions.
- Repeated3 · 30%2
- 2023 · Q59A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy 1/3 of tetrahedral…
mediumNumerical
- 2023 · Q89What fraction of one edge centred octahedral void lies in one unit cell of fcc?
mediumOne-line MCQ
- 2021 · Q81Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are :
mediumOne-line MCQNew idea
- 2023 · Q59
- Repeated2 · 20%
- Repeated2 · 20%
- 1 · 10%
- 1 · 10%
- 1 · 10%
Squares are the ten papers, 2017 to 2026; darker means more questions. Share is of the level above.
Ideas
Every idea inside this topic
6 different ideas were tested; 3 came more than once.
- Number and Location of Voids3×
numerical
One-line MCQ · 4% next - Density of a Unit Cell2×
numerical
Numerical · 4% next - Schottky and Frenkel Defects2×
assertion-reason on crystal defects
Assertion–reason · 4% next - Crystal Systems and Bravais Lattices1×
count unit cell types in bravais lattices
One-line MCQ · 4% next - Radius-Edge Relations in Cubic Cells1×
relation of radius and edge length
Numerical · 4% next - Formula from Void Occupancy1×
formula of compound from lattice occupancy
One-line MCQ · 4% next
Chance next is the historical rate at which an idea with this record came back in the following paper. It is low for every idea, which is why learning the topic beats memorising past questions. All repeated ideas
Every question
The Solid State questions, year by year
The opening words of each question as it appeared in the official paper, with the idea it tested.
NEET 20232 questions
- Q59A compound is formed by two elements A and B. The element B forms cubic close packed structure and atoms of A occupy 1/3 of tetrahedral…
Idea: Number and Location of Voids
MediumNumerical - Q89What fraction of one edge centred octahedral void lies in one unit cell of fcc?
Idea: Number and Location of Voids
MediumOne-line MCQ
NEET 20222 questions
- Q65Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A) : In a particular…
Idea: Schottky and Frenkel Defects
MediumAssertion–reason - Q100Copper crystallises in fcc unit cell with cell edge length of cm. The density of copper is 8.92 g cm.…
Idea: Density of a Unit Cell
MediumNumerical
NEET 20212 questions
- Q64The correct option for the number of body centred unit cells in all 14 types of Bravais lattice unit cells is :
Idea: Crystal Systems and Bravais Lattices
New ideaMediumOne-line MCQ - Q81Right option for the number of tetrahedral and octahedral voids in hexagonal primitive unit cell are :
Idea: Number and Location of Voids
New ideaMediumOne-line MCQ
NEET 20201 question
- Q97An element has a body centered cubic (bcc) structure with a cell edge of 288 pm. The atomic radius is :
Idea: Radius-Edge Relations in Cubic Cells
New ideaEasyNumerical
NEET 20191 question
- Q85A compound is formed by cation C and anion A. The anions form hexagonal close packed (hcp) lattice and the cations occupy 75% of…
Idea: Formula from Void Occupancy
New ideaMediumOne-line MCQ
NEET 20181 question
- Q89Iron exhibits bcc structure at room temperature. Above 900°C, it transforms to fcc structure. The ratio of density of iron at room…
Idea: Density of a Unit Cell
New ideaHardNumerical
NEET 20171 question
- Q50Which is the incorrect statement ?
Idea: Schottky and Frenkel Defects
MediumOne-line MCQ
Questions from the official NEET UG papers published by NTA (CBSE before 2019). Topic and idea tags, counts and notes are Lumi’s.
More topics in The Solid State
This is the only topic tagged in this chapter.