Thus, gold sol is not a macromolecular colloid, making option (A) the correct answer.
Gold sol is a multimolecular colloid where gold atoms are dispersed in a liquid medium. It is not a macromolecular colloid, which consists of large molecules like proteins or polymers.
List-I (Sol) | List-II (Method of preparation) |
---|---|
A) \( \text{As}_2\text{S}_3 \) | I) Bredig's arc method |
B) \( \text{Au} \) | II) Oxidation |
C) \( \text{S} \) | III) Hydrolysis |
D) \( \text{Fe(OH)}_3 \) | IV) Double decomposition |