Question

what is the size of the particles in true solution?

Answer 1

True Solution is a homogeneous mixture of two or more substances in which substance dissolved (solute) in solvent has the particle size of less than 10-9 m or 1 nm. Simple solution of sugar in water is an example of true solution.

Answer 2

Size of particles in true solution is less than $10^{-9} m$.

Types of mixture:

There are main three types of mixtures based on the size of particles in that mixture -

1. True solution:

• It has minute sized particles which is of size less than 1 nanometre.
• Since the size of particles are very small, there is no tyndall effect or scattering of light.
• The mixture is not visible differentiable. Example of a true solution is salt in water solution.

2. Colloids

• The size of particles in colloidal solution is more than 1 nanometre but less than 1000 nanometres.
• Tyndall effect can be seen in colloidal solutions.
• Examples of colloids are jelly, milk etc.

3. Suspension

• Size of particles in suspension is more than 1000 nanometres.
• Particles get settled down in a suspension.
• Example of suspension is sand in water.