Why particles in a true solution cannot be seen with a naked eye ?

Suspended particles in a suspension can be seen with naked eye, why ?

Suspended particles in a suspension can be seen with naked eye, why ?

The algae that can be seen with naked eye is -

Point out whether the following statements are true or false : (i) Particles in a colloidal solution can always be seen by naked eyes. (ii) Scattering of light occurs when a beam of liquid is passed through aqueous sugar solution. (iii) Colloidal solutions are of heterogeneous nature. (iv) Digestion of food is a chemical change.

……………are Heterogeneous mixtures in which the particle size is too small to be seen with the naked eye but is big enough to scatter light.

The particles of a true solution can pass through a semi-permeable membrane, but those of a colloidal solution cannot. Explain why.

The particles of a true solution can pass through a semi-permeable membrane , but those of a colloidal solution cannot. Explain why.