question_answer 42)

  In the soap micelles (a) the ionic end of soap is on the surface of the cluster while the carbon chain is in the interior of the cluster (b) ionic end of soap is in the interior of the cluster and the carbon chain is out of the cluster (c) both ionic end and carbon chain are in the interior of the cluster (d) both ionic end and carbon chain are on the exterior of the cluster

Answer:

                  (a) A 'spherical aggregate of soap molecules' in the soap solution in water is called a 'micelle'. In a soap micelle, the soap molecules are arranged readily with hydrocarbon ends directed towards the centre and ionic ends directed outwards.