A) polar at outer surface but non-polar at inner surface
B) polar at inner surface non-polar at outer surface
C) distributed over all the surface
D) are present in the surface only
Correct Answer: A
Solution :
[a] Micelles are the clusters formed by the association of colloids. They are formed by lyophillic and lyophobic groups. As the concentration is increased the lyophobic pans receding away from the solvent approach each other and form a cluster, the lyophobic ends are in the interior lyophilic groups projecting outward in contact with the solvent.
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