Question

During the Holi festival, we add solid colours to the water and the entire solution gets coloured. Which among the following phenomenon is responsible for the change of colour?

• A. Sublimation
• B. Melting
• C. Boiling
• D. Diffusion

Answer 1

The correct option is D Diffusion

All particles in the matter have some spaces between them.
Diffusion is the movement of particles from one place to another.
When we add solid colour particles in water, they diffuse into spaces between liquid particles, due to this process colour of water changes.
Diffusion is responsible for the change of colour of the solution.