Question

Name the disperse phase, disperse medium and type of colloids in the following: 1) Fog 2) Milk

Answer 1

Disperse phase is liquid form of milk
Disperse medium is a liquid
colloids mean is :A COLLOID is a substance which is microscopically dispersed (widely spread) evenly throughout another substance.

·        Colloids when mixed remain evenly distributed without settling forming a mixture known as Colloidal Dispersion.

·        Colloids are not visible with our naked eyes, but they can be seen under microscope.

·        The Particles of colloids are intermediate in size between those found in solutions and suspensions.

·        Colloidal particles have an average size of 10-9 to 10-7 m .

·        The Colloidal particles form Dispersed phase and the medium used for this is called as Dispersion medium.

·        Dispersing medium is the external phase and is found in the greater extent in the colloid whereas the Dispersed phase is the internal phase and is found in the lesser extent.

·        A colloidal system can exist in any of the three forms solid, liquid or gaseous.

Answer 2

above answer is right