Interparticle distance is the maximum in :
gases
Anything that occupies space and has mass is called matter. The three forms of matter are:
Explanation for Incorrect answer:
Solids: They have fixed shape and volume. The particles of solids are closely packed and have strong forces of attraction. Example: table, chair, wood, etc.
Liquids: They have no fixed shape but have fixed volume. The particles of liquids are not so closely packed and have little forces of attraction. Example: water, petrol, juice, etc.
Explanation for Correct answer:
Gases: They have neither fixed shape nor volume. The particles of gases are far apart and have the least forces of attraction among the particles. Example: air, carbon dioxide, etc.
Hence, the correct option is C.