(a)
Interpretation:
The presence of asymmetric centers in the given compounds has to be checked.
Concept introduction:
Stereoisomers are isomers which have different spatial arrangement in spite of same bond connectivity. Stereoisomers are due to the presence of stereo center.
Asymmetric center is a stereo center which arises to hydrocarbons if the carbon is bonded to four different groups.
(b)
Interpretation:
The chirality of the given compounds has to be checked.
Concept introduction:
Optical activity (chirality) of a molecule is the interaction between molecule and plane-polarized light.
Molecule having asymmetric center shows optical activity except mesocompounds.
If a compound having non-superimposable mirror image, then the compound is chiral.
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Chapter 4 Solutions
CHEM 262 ORG CHEM EBOOK DIGITAL DELIVERY
- How many chiral centers are in each of the molecules and how to find them?arrow_forwarda. Do the following compounds have any asymmetric centers? b. Are the compounds chiral? 1. CH2=C=CH2 2. CH3CH=C=CHCH3arrow_forwardWhich of the following compounds is/are chiral? 2 a. only 1 b. only 1 and 2 c. only 2 and 3 d. 1,2 and 3 a b.arrow_forward
- How many chiral center does the molecule below have?arrow_forwardA) For a molecule with three chiral carbons the possible number of stereoisomers is: 4, 8, 6 or 2 B)Which of the following has a S configuration: (Image)arrow_forwardChemistry A line drawing of a chiral compound is shown below. Draw the structure of either one of its enantiomers. SH Use the wedge/hash bond tools to indicate stereochemistry where it exists. • In cases where there is more than one answer, just draw one. / √ [F ***** CH₂arrow_forward
- Chair conformations must be considered before determining overall chirality of a molecule. a. FALSE b. TRUEarrow_forwardWhich of the following statements must be true for two pure chiral somers? O a. they must be enantiomers O b. they must be stereoisomers O c. they must be optically active O d. they must be diastereomersarrow_forwardAre these two molecules... functional isomers? Positional isoners? Enantiomers? Diastereomers? Meso isomers?arrow_forward
- A molecule does have chiral carbons but it is not optically active (aka achiral). Give an example molecule and briefly explain why your molecule DOES NOT have an enantiomer.arrow_forwardIn the structure provided choose the option YES or NO to indicate if the carbon atoms are chiral. H₂N A !!! B ...!!!! OH C CIarrow_forwardIs this this not a chiral?arrow_forward
- Chemistry: Matter and ChangeChemistryISBN:9780078746376Author:Dinah Zike, Laurel Dingrando, Nicholas Hainen, Cheryl WistromPublisher:Glencoe/McGraw-Hill School Pub CoOrganic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning