Question

In the soap micelles:
A.The ionic end of the soap is on the surface of the cluster while the carbon chain is in the interior of the cluster
B.The ionic end of the soap is in the interior of the cluster and the carbon chain is out of the cluster
C.Both the ionic and carbon chain are in the interior of the cluster
D.Both the ionic and carbon chain are in the exterior of the cluster

Answer 1

Hint: In soap micelles represent tiny hydrophobic pockets floating around in water, and can solubilize other hydrophobic molecules, such as oils etc. This is usually how a soap aids in cleaning.

Complete step by step answer:
To understand this question, let us first understand a few concepts:
 The chemical structure of a soap consists of a polar ionic hydrophilic end (which basically means the end which is attracted to water) and a non – polar hydrophobic end (which basically means the end which repels water).
When this soap molecule is interacting with water, the soap molecules arrange themselves in the form of spherical aggregates called ‘micelles.’
These micelles have their hydrophilic ends on the outside, which get solvated by the water molecules. On the other hand, the hydrophobic end of the micelle gets clustered together away from the water.
The hydrophilic part of the micelle attaches to water while the hydrophobic part attaches itself to fibre and to dirt particle and completes the cleaning action of the soap
Now, the polar hydrophilic part of the micelle is ionic in nature, while the non – polar hydrophobic part is a carbon chain. The structure of a soap molecule can be given as:

Hence from the above explanations, we can conclude that in the soap micelles the ionic end of the soap is on the surface of the cluster while the carbon chain is in the interior of the cluster.


Hence, Option A is the correct option.

Note:
Hydrolysis of a fat under basic conditions, such as with hydroxide, generates glycerol and three molecules of the fatty acid carboxylate. It is these carboxylates that are the soap molecules, and historically this is exactly how soap was made.