Label the hydrophilic and hydrophobic parts in the following compounds.

(i)


(ii)


(iii) CH3(CH2)16COO(CH2CH2O)nCH2CH2OH

(i)


(ii)


(iii)


Alkyl groups are water hating groups that is they do not get assimilated in water easily whereas on the other hand functional groups like sulphonates, alcohol etc are water liking groups that is these groups dissolve in water easily. Therefore hydrophobic part in the above detergents is the long chain alkyl group and the hydrophilic part is the alcohol group, sulphonates group etc.


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