The correct answer is option 2. A-II, B-III, C-IV, D-I.
Let us go into detail about each type of colloid and its corresponding example:
A. Multimolecular colloids (B - Sulphur molecule):
Multimolecular colloids are colloids where the particles are aggregates of atoms or small molecules. In this case, sulphur molecules form aggregates, and these aggregates constitute the colloid.
B. Macromolecular colloids (III - Nylon):
Macromolecular colloids consist of large molecules or polymers. Nylon is an example of a macromolecular colloid because it is a synthetic polymer composed of long chains of repeating units. The large size of these molecules contributes to the colloidal nature of the dispersion.
C. Associated colloids (IV - Soaps):
Associated colloids are colloids where the particles are composed of both large and small molecules, forming structures like micelles. Soaps are an example of associated colloids. In soap solutions, the soap molecules form micelles, where hydrophobic tails cluster together to avoid water, while hydrophilic heads interact with the aqueous medium.
D. Colloidation (I - Nitrocellulose):
Colloidation refers to the process of forming a colloid. Nitrocellulose is an example of a substance formed through colloidation. Nitrocellulose is produced by treating cellulose with nitric acid and sulfuric acid, resulting in the formation of colloid particles.
So, the correct match is 2. A-II, B-III, C-IV, D-I | 
