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Chemistry - Solid State

Practise 86 JEE Main previous year questions on Solid State, compiled from papers spanning 2002 to 2023. Each question is pulled directly from the actual exam paper it appeared in, so you're practising in the exact style and difficulty JEE Main tests.

Solid State has been asked in 20 of the 25 years of JEE Main papers analysed (2002–2026), with 86 questions in all. 45% of them were easy, 44% moderate and 10% tough. Most of its questions came from 2021, with 17 questions that year. In the last three years (2024–2026) it had 0 questions across 49 papers, about 0 per paper.

The chapter's 7 topics are not weighted equally: Cubic system (53 questions, 62%), Properties and Types of Solids (8 questions, 9%), and Stoichiometric defects (7 questions, 8%) have been asked the most. Cubic system has also led over the last five years, with 14 questions. Cubic system has produced the most tough questions (7).

  1. 1Which of the following expressions is correct in case of a CsCl unit cell (edge length a ) ?15 Apr, 2023 (M)Ionic structure
  2. 2Sodium metal crystallises in a body centred cubic lattice with unit cell edge length of 4 . The radius of sodium atom is _ _ _ 10 - 1 . (Nea13 Apr, 2023 (E)Cubic system
  3. 3An atomic substance A of molar mass 12 g mol 1 has a cubic crystal structure with edge length of 300 pm . The no. of atoms present in one un11 Apr, 2023 (M)Cubic system
  4. 4The correct relationships between unit cell edge length a and radius of sphere r for face-centred and body-centred cubic structures respecti10 Apr, 2023 (E)Cubic system
  5. 5A compound is formed by two elements X and Y . The element Y forms cubic close packed arrangement and those of element X occupy one third of06 Apr, 2023 (M)Cubic system
  6. 6Number of crystal systems from the following where body centred unit cell can be found, is _____. Cubic, tetragonal, orthorhombic, hexagonal06 Apr, 2023 (E)Crystal Structure of Solids
  7. 7Which of the following represents the lattice structure of A 0 . 95 O containing A 2 + , A 3 + and O 2 ions? A. B. C.01 Feb, 2023 (M)Non-stoichiometric defects
  8. 8A metal M crystallizes into two lattices :- face centred cubic (fcc) and body centred cubic (bcc) with unit cell edge length of 2 . 0 and 2 01 Feb, 2023 (E)Cubic system
  9. 9A sample of a metal oxide has formula M 0 . 83 O 1 . 00 . The metal M can exist in two oxidation states + 2 and + 3 . In the sample of M 0 .31 Jan, 2023 (E)Non-stoichiometric defects
  10. 10Iron oxide FeO , crystallises in a cubic lattice with a unit cell edge length of 5 . 0 . If density of the FeO in the crystal is 4 . 0 g cm 30 Jan, 2023 (E)Crystal Structure of Solids
  11. 11A metal M forms hexagonal close-packed structure. The total number of voids in 0 . 02 mol of it is _____ 10 21 (Nearest integer) (Given N A 29 Jan, 2023 (E)Cubic system
  12. 12A cubic solid is made up of two elements X and Y . Atoms of X are present on every alternate corner and one at the center of cube. Y is at 125 Jan, 2023 (M)Cubic system
  13. 13Ionic radii of cation A + and anion B - are 102 and 181 pm respectively. These ions are allowed to crystallize into an ionic solid. This cry29 Jul, 2022 (M)Cubic system
  14. 14An element M crystallises in a body centred cubic unit cell with a cell edge of 300 pm . The density of the element is 6 . 0 g cm - 3 . The 28 Jul, 2022 (M)Cubic system
  15. 15Metal M crystallizes into a FCC lattice with the edge length of 4 . 0 10 - 8 cm . The atomic mass of the metal is g / mol . (Use : N A = 6 .28 Jul, 2022 (E)Cubic system
  16. 16The incorrect statement about the imperfections in solids is28 Jun, 2022 (M)Stoichiometric defects
  17. 17Metal deficiency defect is shown by Fe 0 . 93 O . In the crystal, some Fe 2 + cations are missing and loss of positive charge is compensated27 Jun, 2022 (M)Non-stoichiometric defects
  18. 18Two elements A and B which form 0 . 15 moles of A 2 B and AB 3 type compounds. If both A 2 B and AB 3 weigh equally, then the atomic weight 27 Jun, 2022 (M)Cubic system
  19. 19In a solid AB , A atoms are in ccp arrangement and B atoms occupy all the octahedral sites. If two atoms from the opposite faces are removed26 Jun, 2022 (E)Cubic system
  20. 20The distance between Na + and Cl - ions in solid NaCl of density 43 . 1 g cm - 3 is . . . . . 10 - 10 m . (Nearest Integer) (Given : N A = 625 Jun, 2022 (M)Cubic system
  21. 21Atoms of element X form hcp lattice and those of element Y occupy 2 3 of its tetrahedral voids. The percentage of element X in the lattice i24 Jun, 2022 (M)Cubic system
  22. 22The empirical formula for a compound with a cubic close packed arrangement of anions and with cations occupying all the octahedral sites in 31 Aug, 2021 (E)Cubic system
  23. 23Match List - I with List - II: List-I (Property) List-II (Example) (a) Diamagnetism (i) MnO (b) Ferrimagnetism (ii) O 2 (c) Paramagnetism (i27 Aug, 2021 (M)Electrical and Magnetic properties
  24. 24Given below are two statements: Statement I : Frenkel defects are vacancy as well as interstitial defects. Statement II : Frenkel defect lea26 Aug, 2021 (M)Stoichiometric defects
  25. 25The parameters of the unit cell of a substance are a = 2 . 5 , b = 3 . 0 , c = 4 . 0 , = 90 , = 120 = 90 . The crystal system of the substan27 Jul, 2021 (M)Properties and Types of Solids
  26. 26Select the correct statements. (A) Crystalline solids have long range order. (B) Crystalline solids are isotropic. (C) Amorphous solid are s27 Jul, 2021 (E)Properties and Types of Solids
  27. 27A copper complex crystallising in a CCP lattice with a cell edge of 0 . 4518 nm has been revealed by employing X -ray diffraction studies. T22 Jul, 2021 (M)Cubic system
  28. 28Given below are two statements. One is labelled as Assertion A and the other is labelled as Reason R . Assertion A : Sharp glass edge become20 Jul, 2021 (M)Properties and Types of Solids
  29. 29Diamond has a three dimensional structure of C atoms formed by covalent bonds. The structure of diamond has face centred cubic lattice where20 Jul, 2021 (E)Cubic system
  30. 30In a binary compound, atoms of element A form a hcp structure and those of element M occupy 2 / 3 of the tetrahedral voids of the hcp struct18 Mar, 2021 (M)Cubic system
  31. 31The oxide that shows magnetic property is:18 Mar, 2021 (E)Electrical and Magnetic properties
  32. 32A hard substance melts at high temperature and is an insulator in both solid and in molten state. This solid is most likely to be a / an :18 Mar, 2021 (E)Properties and Types of Solids
  33. 33KBr is doped with 10 - 5 mole percent of SrBr 2 The number of cationic vacancies in 1 g of KBr crystal is 10 14 . (Round off to the Nearest 17 Mar, 2021 (E)Non-stoichiometric defects
  34. 34A certain element crystallises in a bcc lattice of unit cell edge length 27 A o . If the same element under the same conditions crystallises16 Mar, 2021 (M)Cubic system
  35. 35Ga (atomic mass 70 u ) crystallizes in a hexagonal close packed structure. The total number of voids in 0 . 581 g of Ga is ________ 10 21 . 16 Mar, 2021 (E)Cubic system
  36. 36The number of octahedral voids per lattice site in a lattice is_. (Rounded off to the nearest integer)26 Feb, 2021 (E)Cubic system
  37. 37The unit cell of copper corresponds to a face centered cube of edge length 3 . 596 with one copper atom at each lattice point. The calculate25 Feb, 2021 (E)Cubic system
  38. 38The coordination number of an atom in a body-centered cubic structure is______ [Assume that the lattice is made up of atoms.]24 Feb, 2021 (M)Cubic system
  39. 39A crystal is made up of metal ions M 1 and M 2 and oxide ions. Oxide ions form a ccp lattice structure. The cation M 1 occupies 50 % of octa06 Sep, 2020 (E)Cubic system
  40. 40A diatomic molecule X 2 has a body-centred cubic ( bcc ) structure with a cell edge of 300 pm . The density of the molecule is 6 . 17 gcm - 05 Sep, 2020 (M)Cubic system
  41. 41An element crystallises in a face centred cubic (fcc) unit cell with cell edge a. The distance between the centres of two nearest octahedral05 Sep, 2020 (E)Cubic system
  42. 42An element with molar mass 2 .7 10 2 kg mol 1 forms a cubic unit cell with edge length 405 pm . If its density is 2 . 7 10 3 kg m - 3 , the 03 Sep, 2020 (M)Cubic system
  43. 43Which of the following compounds is likely to show both Frenkel and Schottky defects in its crystalline form?08 Jan, 2020 (E)Stoichiometric defects
  44. 44An element has a face-centered cubic fcc structure with a cell edge of a . The distance between the centres of two nearest tetrahedral voids12 Apr, 2019 (M)Cubic system
  45. 45The ratio of number of atoms present in a simple cubic, body centered cubic and face centered cubic structure are, respectively :12 Apr, 2019 (E)Cubic system
  46. 46Element B forms ccp structure and A occupies half of the octahedral voids, while oxygen atoms occupy all the tetrahedral voids. The structur08 Apr, 2019 (M)Cubic system
  47. 47Consider the bcc unit cells of the solids 1 and 2 with the position of atoms as shown below. The radius of atom B is twice that of atom A . 08 Apr, 2019 (E)Cubic system
  48. 48A solid having density of forms face centred cubic crystals of edge length What is the molar mass of the solid? [Avogadro constant11 Jan, 2019 (M)Cubic system
  49. 49The radius of the largest sphere which fits properly at the centre of the edge of a body centred cubic unit cell is : (Edge length is repres11 Jan, 2019 (E)Cubic system
  50. 50Which primitive unit cell has unequal edge lengths a b c and all axial angles different from 90 o10 Jan, 2019 (M)Crystal Structure of Solids

Frequently Asked Questions

1.How many questions are available for Solid State?

This chapter includes 86 questions compiled from JEE Main papers spanning 2002 to 2023.

2.Are these questions only from JEE Main, or from other exams too?

These are JEE Main questions specifically for the Solid State chapter. Questions from other exams like NTA Abhyas (JEE Main) or JEE Advanced are organised separately under their respective exam sections.

3.Is Solid State an important chapter for JEE Main Chemistry?

Solid State has appeared in 20 of the 25 years of JEE Main papers covered here, with 86 questions across 81 papers - about one per paper it appears in.

4.What is the difficulty level of Solid State questions in JEE Main?

Of the 86 questions analysed for this chapter, 45% are easy, 44% moderate and 10% tough. 2021 had the most, with 17 questions.

5.Which topics in Solid State should I focus on?

These topics have carried the most weightage in Solid State:

  • Cubic system - 53 questions (62%)
  • Properties and Types of Solids - 8 questions (9%)
  • Stoichiometric defects - 7 questions (8%)
  • Cubic system has produced the most tough questions (7).
6.Is Solid State's weightage in JEE Main going up or down?

Across all 81 papers analysed, Solid State has averaged about 1.1 questions per paper. In the last three years (2024–2026), that average has fallen, at about 0.0 questions per paper. Use the year-wise numbers on this page for the exact trend before you decide how much time to give it.