Name: Separation of Dyes in Black Ink by Chromatography
Uploaded: 2019-07-19
Duration: 3 min 31 s
Description: We have all used a black ink pen in school. But did you know that black ink is made of several dyes of other colours? Chromatography is used to find these dy...

Question

The table below classifies the phases of a colloid.

Suggest how would you use this table to classify the following materials: glass, mist, styrofoam, jelly, pumice stone, fog, whipped cream, salad dressing, paint, ink, and smoke.

Accepted Answer

Glass is an example of solid sol. The dispersed phase and dispersion phase are in solid form.

Mist, fog is an example of aerosol. The dispersed phase is liquid, and the dispersion medium is gas.

If the dispersed phase is gas and the dispersion medium is solid then the colloidal solution is known as a solid foam. Example: Styrofoam, pumice stone.

If the dispersed phase is solid and the dispersion medium is liquid then the colloidal solution is known as sols. For example paints, jellies, ink.

If the dispersed phase is gas and the dispersion medium is liquid then the colloidal solution is known as foam. For example, whipped cream.

If the dispersed phase is liquid and the dispersion medium is liquid then the colloidal solution is known as an emulsion. For example, salad dressing.

If the dispersed phase is solid and the dispersion medium is gas then the colloidal solution is known as an aerosol. For example, dust and smoke.

The table below classifies the phases of a colloid.

Suggest how would you use this table to classify the following materials: glass, mist, styrofoam, jelly, pumice stone, fog, whipped cream, salad dressing, paint, ink, and smoke.

Important Questions on How Do We Use Matter?

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