Question

Consider the following pairs.

S. No.	Dispersed Phase	Dispersing Medium	Type
1.	Liquid	Gas	Aerosol
2.	Gas	Liquid	Foam
3.	Liquid	Liquid	Emulsion
4.	Liquid	Solid	Solid Sol

 

Which are the correct pairs?

1. 1, 2 and 4 only
2. 1, 3 and 4 only
3. 1, 2 and 3 only
4. All are correct

Answer 1

Correct Answer - Option 3 : 1, 2 and 3 only

The correct answer is 1, 2 and 3 only.

• A colloid is a mixture that has particles ranging between 1 and 1000 nanometers in diameter.
• We cannot see them with naked eyes because of the small size of colloidal particles.
• Colloids are big enough to scatter a beam of light passing through it and make its path visible.
• They cannot be separated from the mixture by the process of filtration.
• The components of a colloidal solution are the dispersed phase and the dispersion medium.

S. No	Dispersed Phase	Dispersing Medium	Type
1.	Liquid	Gas	Aerosol
2.	Gas	Liquid	Foam
3.	Liquid	Liquid	Emulsion
4.	Liquid	Solid	Gel
5.	Solid	Liquid	Sol
6.	Gas	Solid	Foam
7.	Solid	Solid	Solid Sol

 

• The fourth pair is not correct. Other pairs are correct.