Question

Arrange in increasing order of force of attraction among the constituent particles.

• A. Air
• B. Water
• C. Toothpaste
• D. Iron rod

Answer 1

$\bullet$ Solids are rigid and incompressible due to very less or no space between the particles. The force of attraction among their constituent particles is strong.
$\bullet$ Liquids have weak force of attraction as compared to solids.
$\bullet$ Gas particles are in constant random motion and have the weakest force of attraction between them.
$\bullet$ Semi-solids like toothpaste have weaker force of attraction than soilds but stronger than liquids.
Thus, the order of force of attraction is:
Air < Water < Toothpaste < Iron rod