What is the attraction of different molecules to each other called?

• A. Adhesion
• B. Cohesion
• C. Attraction
• D. Repulsion

Answer: (A)

The interaction between different molecules attracting each other is specifically referred to as adhesion. Adhesion is the tendency of dissimilar particles or surfaces to cling to one another. This concept is essential in various applications, such as when water molecules adhere to the surfaces of glass or when paint adheres to a wall.

Cohesion, by contrast, describes the attraction between similar molecules, such as water molecules that bond together due to hydrogen bonds. While attraction can refer more generally to forces between molecules, it does not specifically distinguish the interaction types. Repulsion refers to the forces that push molecules away from each other, which is contrary to what adhesion describes. Therefore, adhesion correctly identifies the phenomenon in which different types of molecules are attracted to each other.