COMEDK2021ChemistrySurface Chemistry
Which of the following colloids resemble to the true solutions?
Options
- AMacromolecular colloids
- BMicelles
- CMicromolecular colloids
- DLyophobic colloids
Correct answer
A. Macromolecular colloids
Step-by-step solution
Colloids are classified based on the size of the particles into three types: multimolecular, macromolecular, and associated colloids (micelles). Macromolecular colloids are formed by large molecules such as polymers, proteins, starch, and cellulose, which have high molecular masses. These molecules are large enough to fall within the colloidal range of 1 nm to 1000 nm. However, in many cases, these macromolecular colloids form solutions that are stable and exhibit properties very similar to true solutions, such as