Topics covered #

31 topics, in teaching order.

  1. Introduction to Unit Cell
  2. Types of Unit Cell
  3. Simple Cubic Unit Cell: Rank (z)
  4. Simple Cubic Unit Cell: Packing Fraction
  5. Simple Cubic Unit Cell: Coordination Number
  6. Body Centred Cubic (BCC) Unit Cell
  7. Face Centred Cubic (FCC) Unit Cell
  8. FCC Unit Cell: Packing Fraction
  9. FCC Unit Cell: Coordination Number
  10. Hexagonal Close Packing Arrangement
  11. Cubic Close Packing Arrangement
  12. Layer Arrangement in FCC
  13. Tetrahedral Voids
  14. Octahedral Voids
  15. Position of Tetrahedral Voids in FCC
  16. Position of Octahedral Voids in FCC
  17. Hexagonal Primitive (HP) Unit Cell
  18. Rank of HP Unit Cell
  19. Packing Fraction of HP Unit Cell
  20. Coordination Number of HP Unit Cell
  21. Radius Ratio
  22. Density of Unit Cell
  23. Ionic Structure of Rock salt
  24. Ionic Structure of Zinc Blende
  25. Ionic Structure of Fluorite
  26. Ionic Structure of Anti-Fluorite
  27. Ionic Structure of Cesium Halide
  28. Crystal Defects: Schottly Defect
  29. Crystal Defects: Frenkel Defect
  30. Crystal Defects: Metal Excess Defect
  31. Crystal Defects: Metal Deficiency Defect

Weightage #

Expect about 1 question in NEET — roughly 4 of 720 marks.

1 of 180 questions · 4 of 720 marks
This chapter's share of the paper. Weightage is indicative — it reflects how many questions have typically come from here, not a guarantee for any single year.

Practise this chapter #

Reading it once is not the same as being able to answer it under time.

Practice questionsChapter-wise MCQs with solutions Video lecturesTopic-by-topic walkthroughs Chapter testExam-format, timed NEET previous-year questionsPast questions from this chapter AIIMS previous-year questionsOlder AIIMS papers, same syllabus

Next in Chemistry

← PreviousEnvironmental Chemistry

Frequently asked #

How many questions come from The Solid State in NEET?
About 1 question — roughly 4 of the 720 marks available. It is a Class 12 Chemistry chapter.
What topics does this chapter cover?
31 topics — from Introduction to Unit Cell through Crystal Defects: Metal Deficiency Defect. The full list is above.
Where can I practise The Solid State?
Chapter-wise MCQs, video lectures, a timed chapter test, and both NEET and AIIMS previous-year questions — all linked above.