Question

Which of the following pair will exhibit diffusion?

• A. Salt and sugar
• B. Tea bag and hot water
• C. Rubber and iron particles
• D. Salt and sand

Answer 1

The correct option is B Tea bag and hot water

Intermixing of particles of two different types of matter on their own is called diffusion.
When a tea bag is dipped in a glass of hot water, the tea dissolves in water due to motion of the particles. These particles occupy the spaces between water molecules. Transfer of heat from hot water to the tea bag makes the tea particles to move much faster. Therefore, tea bag and hot water exhibit diffusion.