Solid State — JEE Main PYQs & Practice Questions

Solid State is a Chemistry chapter in the JEE Main syllabus. This page brings together 45 previous-year and practice questions on Solid State, organised into 5 topics: Crystalline and Amorphous Solids, Crystal Systems and Unit Cells, Close Packing, Voids and Crystal Defects. Most questions come with a step-by-step solution you can work through free in PrepWiser.

Download Solid State JEE Main PYQs as a free PDF (with answer key)

Chapter weightage: how many questions each chapter had per shift in the 2024–26 papers.

Crystalline and Amorphous Solids

• Which of the following material is not a semiconductor.
• CO₂ is a molecular solid while SiO₂ is a covalent network solid.
• 'X' melts at low temperature and is a bad conductor of electricity in both liquid and…
• Select the correct statements (A) Crystalline solids have long range order. (B)…
• Given below are two statements. One is labelled as Assertion A nd the other is labelled…
• Which one of the following pairs is an example of polar molecular solids?
• A hard substance melts at high temperature and is an insulator in both solid and in…

Crystal Systems and Unit Cells

• Number of crystal systems from the following where body centred unit cell can be found…
• Which of the following expressions is correct in case of a CsCl unit cell (edge length…
• A copper complex crystallising in a CCP lattice with a cell edge of 0.4518 nm has been…
• An atomic substance A of molar mass 12 g mol⁻¹ has a cubic crystal structure with edge…
• An element with molar mass 2.7 × 10⁻² kg mol⁻¹ forms a cubic unit cell with edge length…
• A metal M crystallizes into two lattices :- face centred cubic (fcc) and body centred…
• A cubic solid is made up of two elements X and Y. Atoms of X are present on every…
• An element X has a body centred cubic (bcc) structure with a cell edge of 200 pm. The…
• An element M crystallises in a body centred cubic unit cell with a cell edge of 300 pm…
• A certain element crystallises in a bcc lattice of unit cell edge length 27Aᵒ. If the…
• The parameters of the unit cell of a substance are a = 2.5, b = 3.0, c = 4.0, α = 90°, β…
• The coordination number of an atom in a body-centered cubic structure is _______…
• Metal M crystallizes into a fcc lattice with the edge length of 4.0 × 10⁻⁸ cm. The…
• Sodium metal crystallizes in a body centred cubic lattice with unit cell edge length of…
• Diamond has a three dimensional structure of C atoms formed by covalent bonds. The…
• The distance between Na⁺ and Cl⁻ ions in solid NaCl of density 43.1 g cm⁻³ is…
• A diatomic molecule X₂ has a body-centred cubic (bcc) structure with a cell edge of 300…
• The unit cell of copper corresponds to a face centered cube of edge length 3.596 Aᵒ with…
• Iron oxide FeO, crystallises in a cubic lattice with a unit cell edge length of 5.0 Å…

Close Packing

• The correct relationships between unit cell edge length 'a' and radius of sphere 'r' for…
• Ionic radii of cation A⁺ and anion B⁻ are 102 and 181 pm respectively. These ions are…

Voids

• A crystal is made up of metal ions 'M₁' and 'M₂' and oxide ions. Oxide ions form a ccp…
• A metal M forms hexagonal close-packed structure. The total number of voids in 0.02 mol…
• In a binary compound, atoms of element A form a hcp structure and those of element M…
• In a solid AB, A atoms are in ccp arrangement and B atoms occupy all the octahedral…
• The empirical formula for a compound with a cubic close packed arrangement of anions and…
• The number of octahedral voids per lattice site in a lattice is _________. (Rounded off…
• An element crystallises in a face-centred cubic (fcc) unit cell with cell edge a. The…
• Atoms of element X form hcp lattice and those of element Y occupy 2/3 of its tetrahedral…
• A compound is formed by two elements X and Y. The element Y forms cubic close packed…
• Ga (atomic mass 70 u) crystallizes in a hexagonal close packed structure. The total…

Crystal Defects

• Given below are two statements. Statement I : Frenkel defects are vacancy as well as…
• KBr is doped with 10⁻⁵ mole percent of SrBr₂. The number of cationic vacancies in 1g of…
• Which of the following represents the lattice structure of A_(0.95)O containing A²⁺,A³⁺…
• When Fe_(0.93)O is heated in presence of oxygen, it converts to Fe₂O₃. The number of…
• The incorrect statement about the imperfections in solids is :
• Which of the following compounds is likely to show both Frenkel and Schottky defects in…
• Metal deficiency defect is shown by Fe 0.93 O. In the crystal, some Fe²⁺ cations are…

More Chemistry chapters

• Mole Concept & Stoichiometry
• Atomic Structure
• Gaseous State
• Chemical Thermodynamics
• Chemical Equilibrium
• Ionic Equilibrium
• Redox Reactions
• Solutions & Colligative Properties
• Electrochemistry
• Chemical Kinetics
• Surface Chemistry
• Nuclear & Radiochemistry
• Periodic Table & Periodicity
• Chemical Bonding & Molecular Structure
• Hydrogen & s-Block Elements
• p-Block Elements — Part I (Group 13 & 14)
• Environmental Chemistry
• p-Block Elements — Part II (Group 15-18)
• d & f Block Elements
• Coordination Compounds
• Metallurgy
• Qualitative Analysis — Salt Analysis
• Purification & Characterisation of Organic Compounds
• General Organic Chemistry (GOC)
• Hydrocarbons — Alkanes
• Hydrocarbons — Alkenes & Alkynes
• Hydrocarbons — Aromatic (Arenes)
• Halogen Derivatives — Haloalkanes & Haloarenes
• Alcohols, Phenols & Ethers
• Aldehydes & Ketones
• Carboxylic Acids & Their Derivatives
• Amines & Diazonium Salts
• Carbohydrates & Biomolecules
• Polymers
• Chemistry in Everyday Life
• Practical Organic Chemistry

Frequently asked questions

How many Solid State questions are there for JEE Main?

PrepWiser has 45 Solid State questions for JEE Main, grouped into 5 topics such as Crystalline and Amorphous Solids, Crystal Systems and Unit Cells and Close Packing.

Are these Solid State questions from previous-year JEE Main papers?

Yes — most are genuine previous-year questions from past JEE Main papers, and the rest are practice questions written to match the JEE Main pattern and difficulty.

Where can I see the answers and solutions to these Solid State questions?

Open any Solid State question in PrepWiser (it is free) to attempt it; most come with a step-by-step solution.