Question

I. Which of the following events is NOT an example of diffusion? A) While still some distance away, the smell of mangoes from a nearby fruit stall becomes very evident. B) A pail of water is toppled and water got spilled across the floor, flowing from one end to another. C) The exchange of oxygen and carbon dioxide in the lungs’ air sacs as a person respires. D) A blue copper sulphate crystal dissolves slowly when placed in a beaker of water without stirring, giving a uniformly light blue solution.

Answer 1

Answer:

B one is not a diffusion

Explanation:

because diffusion means the movement of gases or particles from region of jigh concentration to region of low concentration which will not take place in case of B option