1. Filtration Test:
- Take a small sample of the mixture and pass it through a filter paper.
- If the copper sulphate particles are large enough to be trapped by the filter paper, they will remain on the filter, and the filtrate (liquid that passes through) will be clear or have a very light blue colour. This indicates that the mixture is a suspension.
- If the copper sulphate particles are very small and can pass through the filter paper, the filtrate will be blue, and no solid particles will be visible on the filter. This suggests that the mixture is a solution.
2. Tyndall Effect Test:
- Take a beaker of the mixture and place it in a dark room.
- Shine a strong beam of light, such as from a flashlight, through the beaker.
- If the mixture is a suspension, the light beam will scatter and become visible as a path of light. This phenomenon is known as the Tyndall effect and occurs due to the reflection of light by the suspended particles.
- If the mixture is a solution, the light beam will pass through the beaker without any visible scattering, and no path of light will be observed.
Based on the results of these tests, you can determine whether the mixture of copper sulphate and water is a suspension or a solution.
