| Column I: Solids | Column II: Types |
| a. Polyurethane | i. Crystalline |
| b. Naphthalene | ii. Amorphous |
| c. Benzoic acid | |
| d. Teflon |
| Statement 1: | Glass considered a super cooled liquid. |
| Statement 2: | Glass has tendency to flow slowly. |
| Column I | Column II |
| a. Potassium sulphate | i. Molecular (non-polar) solid |
| b. Benzene | ii. Ionic solid |
| c. Water | iii. Covalent or network solid |
| d. Graphite | iv. Hydrogen bonded molecular solid |
| 1. | In molten state, electricity is conducted by ions |
| 2. | In molten state, electricity is conducted by free electrons |
| 3. | In molten state, electricity is conducted by Pie electrons |
| 4. | None of the above |
| 1. | Each lattice point represents octahedral void |
| 2. | Generally, each lattice point represents one unit cell in a solid |
| 3. | Each lattice point represents one constituent particle of a solid |
| 4. | Each lattice point represents tetrahedral void |