Question
Distinguish between ionic solids and molecular solids.
| Type/ Property | Ionic solids | Molecular solids |
| 1. Particles of unit cell | Cations and anions | Monoatomic or polyatomic molecules |
| 2. Interparticle forces | Electrostatic | London, dipole-dipole forces and/or hydrogen bonds |
| 3. Hardness | Hard and brittle | Soft |
| 4. Melting points | High $600 ^\circ\ C$ to $3000 ^\circ\ C$ | Low ($-272 ^\circ\ C$ to $400 ^\circ\ C$) |
| 5. Thermal and electrical conductivity | Poor electrical conductors in solid state. Good conductors when melted or dissolved in water. | Poor conductor of heat and electricity |
| 6. Examples | $NaCl, CaF_2$ | ice, benzoic acid |
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.
| $[ A ]_0 / M$ | $[ B ]_0 / M$ | $r _0 / Ms ^{-1}$ |
| $0.488$ | $0.160$ | $0.24$ |
| $0.244$ | $0.160$ | $0.06$ |
| $0.244$ | $0.320$ | $0.12$ |