Question

(8) Define colloid State any two characteristics of a colloid
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Answer 1

Answer:

A colloid is a mixture composed of particles in a dispersing medium. A colloid is defined by the size of the particles involved. If the particles in a mixture are on the scale of individual molecules, around 1 nanometer, it is defined as a solution. If the particles are larger than 1,000 nanometers, it is a suspension.

Answer 2

Answer:

1)a homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.

adjectivy

2)(i) Heterogeneous nature: Colloidal sols are heterogeneousin nature. They consists of two phases; the dispersed phase and the dispersion medium. (ii) Stable nature: The colloidal solutions are quite stable. Their particles are in a state of motion and do not settle down at the bottom of the container.