The inter-molecular forces are strongest in :

1. solids
2. liquids
3. gases
4. both (i) and (ii)

The molecules :

1. in solid, liquid and gas, move freely anywhere.
2. in a solid, move freely within its boundary.
3. in a liquid, move within its boundary.
4. in a gas, move only within its boundary.

Solids are :

1. more dense
2. less dense
3. least dense
4. highly compressible

The inter-molecular forces in liquids are :

1. as strong as in solids
2. stronger than in solids
3. weaker than in solids
4. weaker than in gases