The different chirality centers of cholesterol are to be marked with an asterisk. Concept Introduction: > The molecules which are non-superimposable or not identical with their mirror images are known as chiral molecules. > A pair of two mirror images which are non-identical is known as enantiomers which are optically active. > The objects or molecules which are superimposable with their mirror images are achiral objects or molecules and these objects have a centre of symmetry or plane of symmetry. > The achiral compounds in which plane of symmetry is present internally and consists of chiral centres are known as meso compounds, but they are optically inactive. > Diastereomers are the stereoisomers that are not mirror images of each other and are not superimposable on each other. > They possess different physical as well as chemical properties, because of difference in orientations. > Cholesterol is an organic compound and a derivative of steroid. In the human body, it is produced as an intermediate in the biosynthesis of steroids. It is produced at a much higher rate than what is necessary for the synthesis of steroid. In a molecule of cholesterol, there is no internal plane of symmetry, and hence every carbon atom is different and each chiral carbon has four different groups.

Question

Want to see the full answer?

Answer 1

Question

Chapter 23, Problem 10PP

Interpretation Introduction

Interpretation:

The different chirality centers of cholesterol are to be marked with an asterisk.

Concept Introduction:
>
The molecules which are non-superimposable or not identical with their mirror images are known as chiral molecules.
>
A pair of two mirror images which are non-identical is known as enantiomers which are optically active.
>
The objects or molecules which are superimposable with their mirror images are achiral objects or molecules and these objects have a centre of symmetry or plane of symmetry.
>
The achiral compounds in which plane of symmetry is present internally and consists of chiral centres are known as meso compounds, but they are optically inactive.
>
Diastereomers are the stereoisomers that are not mirror images of each other and are not superimposable on each other.
>
They possess different physical as well as chemical properties, because of difference in orientations.
>
Cholesterol is an organic compound and a derivative of steroid. In the human body, it is produced as an intermediate in the biosynthesis of steroids. It is produced at a much higher rate than what is necessary for the synthesis of steroid. In a molecule of cholesterol, there is no internal plane of symmetry, and hence every carbon atom is different and each chiral carbon has four different groups.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

Don't used Ai solution

What is the absorption spectrum of a solution of naphthalene in benzene , and the vibronic transitions responsible for the vibrational fine structure ?

3. Titanium(III) chloride can be used to catalyze the polymerization of ethylene. It is prepared by hydrogen reduction of Titanium(IV) chloride. Reaction of hydrogen gas with titanium(IV) chloride gas produces solid titanium(III) chloride and hydrogen chloride gas. (a) Write a BALANCED chemical reaction for the preparation of titanium(III) chloride (b) A 250 L reaction vessel at 325°C is filled with hydrogen gas to a pressure of 1.3 atm. Titanium(IV) chloride is then added to bring the total pressure to 3.00 atm. How many grams of titanium(III) chloride will be produced after completion of the reaction? (c) What will be the pressure of the resulting hydrogen chloride gas that is also produced?