Choose the INCORRECT statement.
◦ Colloidal particles are large aggregates of atoms they are electrically neutral.
◦ Colloidal suspensions can be prepared in which the particles do not settle.
◦ The addition of electrolytes to a colloidal suspension will sometimes cause the particles to coalesce and precipitate.
◦ Colloidal particles reflect light from a beam.
◦ Colloidal suspensions exhibit the Tyndall effect.