What are colloids? Write any four properties of colloid.
Answers
Answer:
homogeneous non-crystalline substance consisting of large molecules or ultramicroscopic particles of one substance dispersed through a second substance. Colloids include gels, sols, and emulsions; the particles do not settle, and cannot be separated out by ordinary filtering or centrifuging like those in a suspension.
Physical Properties of Colloidal Solutions
(i) Heterogeneous nature: Colloidal sols are heterogeneousin nature. ...
(ii) Stable nature: The colloidal solutions are quite stable. ...
(iii) Filterability: Colloidal particles are readily passed through the ordinary filter papers. ...
(2) Colligative properties
Answer:
Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium. The particles of a colloid remain dispersed and do not settle due to gravity, and they are often electrically charged.
property
They do not settle down when left undisturbed, that is, a colloid is quite stable. They cannot be separated from the mixture by the process of filtration. But, a special technique of separation known as centrifugation can be used to separate the colloidal particles.
Explanation:
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