Concept explainers
(a)
Interpretation:
Skeletal structure for the cis and trans isomers for 3-heptene should be drawn.
Concept Introduction:
Cis-trans isomers fall under geometric isomerism.
Cis isomers- two different groups are on the same side of the double bond.
Trans isomers- two different groups are on opposite sides of the double bond.
The skeletal structure is the arrangement of atoms and bonds in the molecule.
(b)
Interpretation:
Skeletal structure for the cis and trans isomers for 4,4-dimethyl-2-hexene should be drawn.
Concept Introduction:
Alkenes are hydrocarbon molecules that consist of a carbon-carbon double bond which has the general formula of
Cis-trans isomers fall under geometric isomerism.
Cis isomers- two different groups are on the same side of the double bond.
Trans isomers- two different groups are on opposite sides of the double bond.
The skeletal structure is the arrangement of atoms and bonds in the molecule.
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Chapter 13 Solutions
CONNECT IA GENERAL ORGANIC&BIO CHEMISTRY
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- Indicate whether each statement is true or false. (a) Twogeometric isomers of pentane are n-pentane and neopentane.(b) Alkenes can have cis and trans isomers around theCC double bond. (c) Alkynes can have cis and trans isomersaround the CC triple bond.arrow_forwardName or write the condensed structural formula for the fol- lowing compounds: (a) trans-2-pentene (b) 2,5-dimethyl-4-octene (c) CH3 CH;CHCH,CH3 C=C `H. CH;CH2, H СООН H CH3 CH CH3 CH3 `CH2 (d)arrow_forwardDraw both condensed and line structures corresponding to the following IUPAC names:(a) 3-Methylhept-1-ene (b) 4,4-Dimethylpent-2-yne(c) 2-Methylhex-3-ene (d) 1,3,3-Trimethylcyclohexenearrow_forward
- Draw the skeletal structures of the following molecules.(a) (4E)-2,4-dimethyl-1,4-hexadiene (b) cis-3,3-dimethyl-4-propyl-1,5-octadiene (c) trans-2,2,5,5-tetramethyl-3-hexenearrow_forwardWrite the Lewis structure and molecular formula for each of the following hydrocarbons:(a) hexane(b) 3-methylpentane(c) cis-3-hexene(d) 4-methyl-1-pentene(e) 3-hexyne(f) 4-methyl-2-pentynearrow_forwardA certain hydrocarbon has a molecular formula of C5H8. Which of the following is not a structural possibility for this hydrocarbon? (a) It is a cycloalkane. (b) It contains one ring and one double bond. (c) It contains two double bonds and no rings. (d) It is an alkyne.arrow_forward
- Indicate whether each statement is true or false. (a) Pentanehas a higher molar mass than hexane. (b) The longer the linearalkyl chain for straight-chain hydrocarbons, the higherthe boiling point. (c) The local geometry around the alkynegroup is linear. (d) Propane has two structural isomers.arrow_forwardDraw structures for the following molecules. (a) 2-iodo-2,3-dimethylheptane (b) 4-cyclopropyl-3-ethyl-2-methyloctane (c) 1-ethyl-2,4-dimethylcyclopentanearrow_forwardDraw the structure(s) of all of the branched alkene isomers, C6H12, that contain 2 methyl branches.arrow_forward
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