Solid State Chemistry

1. What are the key factors of solid-state reactions?

• a) Size of the particles

• b) Mechanical properties of solids

• c) Thermodynamic and kinetic factors

• d) Environmental factors

2. Which approach can be employed to produce a high degree of homogeneity in the creation of ZnFe₂O₄ spinel?

• a) Distillation method

• b) Vaporization method

• c) Coprecipitation method

• d) Crystallization method

3. In the zone melting approach, which of the following principles was used?

• a) Impurities concentrate in the liquid phase than in the gaseous phase

• b) Impurities concentrate in the solid than in the liquid phase

• c) Impurities concentrate in the gaseous phase than in the solid phase

• d) Impurities concentrate in the liquid phase than in the solid phase

4. Which solid structure has a definite and sharp melting point?

• a) All types of solids

• b) No type of solid

• c) Amorphous solids

• d) Crystalline solids

7. What is the total number of Bravais lattices in the crystal structures?

• a) 3

• b) 6

• c) 14

• d) 24