Read two statements: i) Milk is an example of oil in water (O/W) type emulsion ii) Cold cream is an example of water in oil (W/0) type emulsion Are they right or wrong?

Emulsions are normally prepared by shaking the two components together vigorously although some kind of emulsifiying agent usually has to added to stabilize the product. This emulsifying agent amy be a soap or other sufactant (surface active) sepcies or a lyophilic sol that forms a protective film around the dispersed phase. Emulsion broadly classified into two types: (i) Oil in water emulsions (O/W): Oil acts as dispersed phase and water acts as dispersion medium. (ii). Water in oil emulsion (W/O): Water acts as dispersed phase and oil acts as dispersion medium Due test, dilution test may be emplyoyed for identification of emulsions. Q. Read two statment s: (1) milk is an example of oil in water (O/w) type emulsion (2) cold cream is an example of water in oil (W/O) type emulsion

O/W type emulsion means

Give one example each of 'oil water' and 'water oil' emulsion.

which of the following statement is not true about the oil - in - water type emulsion ?

What is the difference between oil/water (O/W) type and water/oil (W/O) type emulsions? Give an example of each type.

Milk is an emulsion of W//O type.True or False

Which of the following given statements is/are correct? (a) cold cream is an example of (W/O) type emulsions, (b)electrical conductance of aqueous emulsions is less than that of oil emulsions (c) emulsions cannot be broken into constituent liquids by heating or freezing (d) an emulsion can be diluted with water, then it forms (O/W) type emulsion

Give one test to distinguish whether the given emulsion is oil-in-water-type emulsion.

Read following statement(s) carefully and select the right option : (I) The enthalpy of solution of CaCl_(2). 6H_(2)O in a large volume of water is endothermic to the extent of 3.5 kcal/mol. If DeltaH=-23.2 " kcal" for the reaction, CaCl_(2)(s)+6H_(2)O(l)rarrCaCl_(2).6H_(2)O(s) then heat of solution of CaCl_(2) (anhydrous) in a large volume of water is - 19.7 kcal/mol (II) For the reaction 2Cl(g)rarrCl_(2)(g) , the sign of DeltaH and DeltaS are negative.

What are the two classes of emulsions? Give one example of each class. State the activity to test the type of an emulsion.