Colloids

Sulphur sol is a type of multimolecular colloid' as'It consists of particles containing a thousand or more of sulphur molecules.

Sulphur sol consists of particles containing a thousand or more of sulphur molecules.

Macromolecular colloids are colloidal solutions with large molecules (such as proteins, starch, etc.) that resemble true solutions. They have particles that are large enough to form a stable suspension, but small enough to exhibit properties of true solutions. These colloids do not scatter light, similar to true solutions. Thus, the correct answer is Option (A).

Coagulation (or precipitation) is the process by which dispersed colloidal particles come together to form larger aggregates or precipitate when electrolytes are added. The added ions neutralize the surface charges on particles, reducing repulsion.