Subject: General Science
Book: NCERT Chemistry Class 12
Solids have a definite shape and volume.
- **Types of Solids**:
- Crystalline (Regular structure) vs. Amorphous (Irregular structure).
- **Crystal Lattice & Unit Cell**:
- Arrangements of atoms in a solid.
- **Defects in Solids**:
- Point defects and their effect on properties.
**Possible Exam Questions:**
1. Differentiate between crystalline and amorphous solids.
2. Define unit cell and lattice parameters.
3. What are Frenkel and Schottky defects?
4. How does band theory explain the conductivity of solids?
5. Explain the significance of packing efficiency in crystals.
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