Chapter 1 of 16
Syllabus
Solid State — Syllabus
Maharashtra Board · Class 12 · Chemistry
What Solid State covers in Maharashtra Board Class 12 Chemistry: 4 topics, for the 2026-27 session. Topics include Classification of Solids, Crystal.
45 questions20 flashcards2 formulas & key relations5 concepts
Interactive on Super Tutor
Studying Solid State? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for syllabus and more.
Free trial, no card needed.
4 Topics · Maharashtra Board Class 12 Chemistry · 2026-27
Topics in Solid State
1
Classification of Solids
- Solids are classified into two main types: Crystalline solids (regular arrangement) and Amorphous solids (irregular arrangement)
- Crystalline solids have sharp melting points, are anisotropic (except cubic), and show long-range order
- Amorphous solids soften gradually over temperature range, are isotropic, and have short-range order only
2
Crystal Lattices and Unit Cells
- Crystal = Lattice + Basis (constituent particles attached to lattice points)
- Four types of unit cells: Primitive (simple), Body-centered, Face-centered, Base-centered
- Seven crystal systems based on unit cell parameters (a, b, c) and angles (α, β, γ)
3
Close Packing and Coordination
- Close packing maximizes space utilization and intermolecular attractions
- 1D packing: spheres in contact in a row
- 2D packing: Square (AAAA, coordination = 4) and Hexagonal (ABAB, coordination = 6)
4
Crystal Defects
- Point defects: irregularities at specific lattice points
- Stoichiometric defects: Vacancy, Self-interstitial, Schottky, Frenkel
- Vacancy defect: missing atoms, decreases density
Key Concepts
Crystalline solids have ordered arrangementIonic crystals (NaCl)Unit cell is smallest repeating unitHexagonal layers stack as ABABStoichiometric defects preserve composition
Work through every topic in Solid State with notes and quizzes
Start This ChapterFrequently Asked Questions
What are the important topics in Solid State for Maharashtra Board Class 12 Chemistry?
Key topics in Solid State include Classification of Solids, Crystal Lattices and Unit Cells, Close Packing and Coordination, Crystal Defects. Study these first, then practise questions on each for the Maharashtra Board Class 12 board exam.
How should I revise Solid State for the Maharashtra Board Class 12 board exam?
Learn the core ideas first, then work through the 45 practice questions on Solid State. Revise definitions regularly and use flashcards for quick recall before the exam.
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Solid State
For serious students
Get the full Solid State chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for Maharashtra Board Class 12 Chemistry. Free to start, no card needed.