Q34 / 180 · COMEDK 2021 · Chemistry
Which of the following colloids resemble to the true solutions?
- Correct answerAMacromolecular colloids
- BMicelles
- CMicromolecular colloids
- DLyophobic colloids
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 high homogeneity and low viscosity, because the individual molecules themselves act as colloidal particles.
Answer: Macromolecular colloids
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 high homogeneity and low viscosity, because the individual molecules themselves act as colloidal particles.
Answer: Macromolecular colloids
Hence, the correct answer is option: 'A'.