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Concept explainers
(a)
Interpretation:
The order of increasing boiling point for the given set of compounds is to be arranged.
Concept introduction:
The boiling point is defined as a temperature at which the conversion of a liquid into a vapor state takes place. At this temperature, the liquid’s vapor pressure becomes equal to the external pressure surrounding the liquid. The boiling point of a molecule depends upon the interactions that result from permanent or induced dipoles.
(b)
Interpretation:
The order of increasing boiling point for the given set of compounds is to be arranged.
Concept introduction:
The boiling point is defined as a temperature at which the conversion of a liquid into a vapor state takes place. At this temperature, the liquid’s vapor pressure becomes equal to the external pressure surrounding the liquid. The boiling point of a molecule depends upon the interactions that result from permanent or induced dipoles.
The dipole moment is defined as the charge separation between two atoms in a covalent bond or between two ions in an ionic bond. It is used to determine the polarity of atoms or ions.
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Chapter 8 Solutions
EBK ORGANIC CHEMISTRY
- TRUE OR FALSE (a) Both ethylene and acetylene are planar molecules. (b) An alkene in which each carbon of the double bond has two different groups bonded to it will show cis-trans isomerism. (c) Cis-trans isomers have the same molecular formula but a different connectivity of their atoms. (d) Cis-2-butene and trans -2-butene can be interconverted by rotation about the carbon–carbon double bond. (e) Cis-trans isomerism is possible only among appropriately substituted alkenes. (f) Both 2-hexene and 3-hexene can exist as pairs of cis-trans isomers. (g) Cyclohexene can exist as a pair of cis-trans isomers. (h) 1-Chloropropene can exist as a pair of cis-trans isomers.arrow_forwardIndicate 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_forwardWhich alkane in each of the following pairs of compounds has the higher boiling point? (a) octane and heptane octane heptane (b) dodecane and hexane dodecane Ohexanearrow_forward
- Draw a structure for each compound (includes old and new names).(a) 3-methylpent-1-ene (b) cis-3-methyl-3-hexene (c) 3,4-dibromobut-1-enearrow_forward(a) What is the molecular formula of hexane, the alkane withsix carbonsarrow_forwardDraw structures for the following compounds. Show all of the hydrogen atoms in the molecules. (a) ethanol (b) 2-propanol (c) 2-ethyl-5-methylcyclohexanolarrow_forward
- Draw the structures for the following compounds.(a) 3-benzyl-4-bromohexane , 4,4-dimethylcyclohexene(b) trans-4,5-dibromohex-2-ene , cis-1,1-dibromo-2-ethyl-2,3-dimethylcyclobutanearrow_forwardGive the molecular, structural and displayed formulae of the following molecules: (a) 2,2-dimethylpropane (b) 3-bromo-2, 4, 4-trimethyloctanearrow_forward(B) Draw a structural diagram for each of the following organic compounds: (a) 2-ethyl-4-methyl-2-pentanol (b) 1,2-ethandiol (c) 1,3-dimethylbenzenearrow_forward
- Indicate whether each statement is true or false. (a) Alkanesdo not contain any carbon–carbon multiple bonds.(b) Cyclobutane contains a four-membered ring. (c) Alkenescontain carbon–carbon triple bonds. (d) Alkynes containcarbon–carbon double bonds. (e) Pentane is a saturatedhydrocarbon but 1-pentene is an unsaturated hydrocarbon.(f) Cyclohexane is an aromatic hydrocarbon. (g) The methylgroup contains one less hydrogen atom than methane.arrow_forwardDraw the structures of the following compounds. (a) 1-chloro-1 isopropylcyclopentanearrow_forward2. Give a simple chemical test that would distinguish benzene from: (a) propanol (b) cyclohexenearrow_forward
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