Question

Continuous Phase contains dispersed phase throughout. Which among the following is an example of the above term?
A. Water in milk
B. Fat in milk
C. Water droplets in mist
D. Oil in water

Answer 1

Hint:
- Dispersed Phase: The phase which is present in the form of colloidal particles is called dispersed phase
- Continuous Phase: The fluid phase of a colloid in which particles like solid and fluid are distributed.
- Dispersed Medium: The medium in which a dispersed phase is distributed is called a dispersed medium.

Complete step by step answer: The mixture of water in milk remains uniform throughout as dispersed phase and dispersed medium both are the same i.e. liquid.
Also, Fat in Milk is an emulsion in which both the dispersed phase and the dispersion medium are in liquid state. But, this mixture does not remain continuous throughout. Hence, it is also not an example of Continuous Phase.
We know, mist is a phenomenon caused by small droplets of water suspended in air. But, this mixture does not remain continuous throughout. Hence, it is not an example of continuous phase.
The emulsion in which water is present as the dispersion medium and oil is present as the dispersed phase is called an oil-in-water emulsion. In this case, oil starts floating on water. Hence, it is not an example of continuous phase.
As discussed above, the mixture of water in milk remains uniform throughout as dispersed phase and dispersed medium, i.e. Water in Milk.

So, the correct answer is “Option A”.

Note: Some more examples:
- Milk- When dispersion medium is Liquid and dispersed phase is also liquid
- Cream- When dispersion medium is Liquid and dispersed phase is gas
- Smoke- When dispersion medium is gas and dispersed phase is solid
- Fog- When dispersion medium is gas and dispersed phase is liquid
- Cheese- When dispersion medium is Solid and dispersed phase is liquid