(a)
Interpretation: The molecular formulas for citronellol and geraniol needs to be determined.
Concept Introduction: Chemical compounds with same molecular formula having different structure are known as isomers. Isomers having same number of atoms of each type but bonded together in a different sequence (spatial arrangement) are known as stereoisomers.
There are two kinds of stereo isomers- Geometrical and optical.
(a)
Explanation of Solution
The given structures are as follows:
From the above structures, molecular formula of the compounds can be determined as follows:
C10H21O −Citronellol
C10H18O- Gerniol
(b)
Interpretation: The two distinct smells of the molecule citronellol needs to be explained.
Concept Introduction: Chemical compounds with same molecular formula having different structure are known as isomers. Isomers having same number of atoms of each type but bonded together in a different sequence (spatial arrangement) are known as stereoisomers.
There are two kinds of stereo isomers- Geometrical and optical.
(b)
Explanation of Solution
The formula of citronellol is C10H21O. The structure is represented as follows:
There are two optical isomers which are non-superimposable mirror image of each other.
Isomer of Citronellol
Thus, the two different smells are due to two different optical isomers of citronellol.
(c)
Interpretation: The reason for only one smell of geraniol smell needs to be explained.
Concept Introduction: Chemical compounds with same molecular formula having different structure are known as isomers. Isomers having same number of atoms of each type but bonded together in a different sequence (spatial arrangement) are known as stereoisomers.
There are two kinds of stereo isomers- Geometrical and optical.
(c)
Explanation of Solution
The molecular formula of geraniol is C10H18O. The structure is represented as follows:
Geraniol
It can show geometrical isomerism. The E-isomer and Z-isomer are as follows:
Trans-Form Cis-Form
Due to absence of optical isomerism, there is only one smell of the molecule.
Chapter U2 Solutions
Living by Chemistry
Additional Science Textbook Solutions
Chemistry: The Central Science (13th Edition)
Chemistry For Changing Times (14th Edition)
Chemistry (7th Edition)
Organic Chemistry (9th Edition)
Chemistry: A Molecular Approach (4th Edition)
General, Organic, and Biological Chemistry (3rd Edition)
- ChemistryChemistryISBN:9781305957404Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCostePublisher:Cengage LearningChemistryChemistryISBN:9781259911156Author:Raymond Chang Dr., Jason Overby ProfessorPublisher:McGraw-Hill EducationPrinciples of Instrumental AnalysisChemistryISBN:9781305577213Author:Douglas A. Skoog, F. James Holler, Stanley R. CrouchPublisher:Cengage Learning
- Organic ChemistryChemistryISBN:9780078021558Author:Janice Gorzynski Smith Dr.Publisher:McGraw-Hill EducationChemistry: Principles and ReactionsChemistryISBN:9781305079373Author:William L. Masterton, Cecile N. HurleyPublisher:Cengage LearningElementary Principles of Chemical Processes, Bind...ChemistryISBN:9781118431221Author:Richard M. Felder, Ronald W. Rousseau, Lisa G. BullardPublisher:WILEY