Question

comment on the nature of colloids . class 9​

Answer 1

Answer:

A colloid is a mixture in which one substance of microscopically dispersed insoluble particles is suspended throughout another substance. Owing to this peculiar structure of colloid, it has varied physical and chemical properties. Let us explore more about the physical, chemical, optical as well as electrical properties of colloidal solutions.

PROPERTIES :

Physical Properties of Colloidal Solutions :-)

1. Stability: Colloids are relatively stable in nature. The particles of the dispersed phase are in a state of continuous motion and remain suspended in the solution.

2. Filterability:  Colloids require specialized filters known as ultrafilters for filtration. They readily pass through ordinary filter papers without yielding any residue.

3. Heterogenous nature: Since colloids consist of two phases, the dispersed phase as well as the dispersion medium, they are known as heterogeneous in nature.

4. Homogenous appearance: Even though colloids have suspended     particles and are heterogeneous in nature, they appear as if it is a homogenous solution. This is because the suspended particles are so tiny     that they are not visible by the naked eye.

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