question_answer

Identify the dispersed phase and dispersion medium in the following colloidal solutions : smoke (ii) fog (iii) cheese (iv) milk (v) whipped cream.

Answer:

                (i) Smoke: solid particles dispersed in air (solid/gas) (ii) Fog : Water drops dispersed in air (liquid/gas) (iii) Cheese : Liquid dispersed in solid fat (liquid/solid) (iv) Milk : Liquid dispersed in liquid (emulsion) (v) Whipped cream : Air dispersed in liquid (gas/liquid).