Difficult
What are emulsions? What are their different types? Give an example of each type.
(N/A) An emulsion is a colloidal system in which both the dispersed phase and the dispersion medium are liquids.
There are two main types of emulsions:
$(a)$ Oil-in-water $(O/W)$ type:
In this type,oil acts as the dispersed phase and water acts as the dispersion medium. Examples include milk and vanishing cream.
$(b)$ Water-in-oil $(W/O)$ type:
In this type,water acts as the dispersed phase and oil acts as the dispersion medium. Examples include cold cream and butter.
There are two main types of emulsions:
$(a)$ Oil-in-water $(O/W)$ type:
In this type,oil acts as the dispersed phase and water acts as the dispersion medium. Examples include milk and vanishing cream.
$(b)$ Water-in-oil $(W/O)$ type:
In this type,water acts as the dispersed phase and oil acts as the dispersion medium. Examples include cold cream and butter.
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Easy
View SolutionThe migration of dispersion medium under the influence of an electric potential is called
Match the following types of colloids with their examples:
$i$. Foam $a$. Smoke $ii$. Gel $b$. Cell fluid $iii$. Aerosol $c$. Jellies $iv$. Emulsion $d$. Rubber $e$. Froth $f$. Milk
| $i$. Foam | $a$. Smoke |
| $ii$. Gel | $b$. Cell fluid |
| $iii$. Aerosol | $c$. Jellies |
| $iv$. Emulsion | $d$. Rubber |
| $e$. Froth | |
| $f$. Milk |
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