Introduction:
The intermolecular space refers to the space between molecules in a substance. It determines the physical properties of the substance, such as density and compressibility. The amount of intermolecular space varies depending on the state of matter, with different states having different levels of intermolecular space.

Explanation:
The correct answer to the question is option 'A', which states that the intermolecular space is least between solid molecules. This means that the molecules in a solid are closely packed together, resulting in minimal space between them. There are several reasons why the intermolecular space is least between solid molecules:

1. Arrangement of molecules:
In a solid, the molecules are arranged in a highly ordered and closely packed manner. They are held together by strong intermolecular forces, such as metallic bonds, covalent bonds, or ionic bonds. These forces attract the molecules towards each other, causing them to occupy the least amount of space possible.

2. Compact structure:
The arrangement of molecules in a solid allows for a compact structure. The molecules are tightly packed in a regular pattern, with little to no empty space between them. This results in a high density for solids, as the mass is concentrated in a small volume.

3. Lack of mobility:
In a solid, the molecules have limited mobility. They vibrate around fixed positions but do not have the freedom to move past each other. This lack of mobility further reduces the intermolecular space between solid molecules.

4. Strong intermolecular forces:
The intermolecular forces between solid molecules are generally stronger compared to those in gases or liquids. These forces, such as ionic or covalent bonds, hold the molecules tightly together, minimizing the intermolecular space.

Conclusion:
In conclusion, the intermolecular space is least between solid molecules. The close packing, compact structure, lack of mobility, and strong intermolecular forces all contribute to the minimal space between solid molecules. This understanding of intermolecular space is essential in explaining the unique properties of solids, such as their high density and resistance to compression.

Yes the answer is correct because intermolucer space cannot least between gas molecules and liquid molecules