Suspension is a mixture in which small particles of a solid without dissolving in it are spread throughout a liquid.
These particles of a suspension can be seen through the naked eyes.
In these mixtures, all the components present here are completely mixed, and can also be seen under a microscope.
With solid particles present that are sufficiently large for sedimentation, a suspension is a heterogeneous mixture.
Examples include Milk of magnesia , Chalk-water mixture, sand-water mixture.
Therefore, a suspension is a mixture where the small solid particles spread throughout the liquid without getting dissolved. Examples are, sand-water mixture, Milk of magnesia.