Ch. 5 - ChiralityWorksheetSee all chapters
All Chapters
Ch. 1 - A Review of General Chemistry
Ch. 2 - Molecular Representations
Ch. 3 - Acids and Bases
Ch. 4 - Alkanes and Cycloalkanes
Ch. 5 - Chirality
Ch. 6 - Thermodynamics and Kinetics
Ch. 7 - Substitution Reactions
Ch. 8 - Elimination Reactions
Ch. 9 - Alkenes and Alkynes
Ch. 10 - Addition Reactions
Ch. 11 - Radical Reactions
Ch. 12 - Alcohols, Ethers, Epoxides and Thiols
Ch. 13 - Alcohols and Carbonyl Compounds
Ch. 14 - Synthetic Techniques
Ch. 15 - Analytical Techniques: IR, NMR, Mass Spect
Ch. 16 - Conjugated Systems
Ch. 17 - Aromaticity
Ch. 18 - Reactions of Aromatics: EAS and Beyond
Ch. 19 - Aldehydes and Ketones: Nucleophilic Addition
Ch. 20 - Carboxylic Acid Derivatives: NAS
Ch. 21 - Enolate Chemistry: Reactions at the Alpha-Carbon
Ch. 22 - Condensation Chemistry
Ch. 23 - Amines
Ch. 24 - Carbohydrates
Ch. 25 - Phenols
Ch. 26 - Amino Acids, Peptides, and Proteins

Solution: There are various molecules (A–F) drawn in different forms and projections. To answer the following questions, you need to refresh your memories on the concept/definition of “Newman projection”, “Fisher projection”, “stereogenic center”, “racemate (racemic mixture)”, and “meso compound”.   a. Based on the definition of a stereogenic center, which molecules in the list contain at least one stereogenic center? Choose all that apply. b. Which molecules in the list are optically active? Choose all that apply. c. Which molecules in the list are chiral? Choose all that apply. d. Which molecule(s) in the list is meso compound? Choose all that apply e. Which molecule(s) represents a racemate (racemic mixture)? Choose all that apply f. Redraw the Fisher projection in the list with wedge and dash bonds such that these structural representations have the same stereochemistry, and then assign the configuration with R/S    

Problem

There are various molecules (A–F) drawn in different forms and projections. To answer the following questions, you need to refresh your memories on the concept/definition of “Newman projection”, “Fisher projection”, “stereogenic center”, “racemate (racemic mixture)”, and “meso compound”.

 

a. Based on the definition of a stereogenic center, which molecules in the list contain at least one stereogenic center? Choose all that apply.

b. Which molecules in the list are optically active? Choose all that apply.

c. Which molecules in the list are chiral? Choose all that apply.

d. Which molecule(s) in the list is meso compound? Choose all that apply

e. Which molecule(s) represents a racemate (racemic mixture)? Choose all that apply

f. Redraw the Fisher projection in the list with wedge and dash bonds such that these structural representations have the same stereochemistry, and then assign the configuration with R/S