Concept explainers
(a)
Interpretation:
The melting points are to be matched with the given compounds.
Concept introduction:
Melting point is temperature above which it is changed from solid to liquid state. It is an important property for a compound as it is used to determine the purity of the compounds. In case of impurities, the analyzing compounds melting point will be low. The melting point of the branched hydrocarbons is less as compared to the straight chain hydrocarbons as the branching perturbs the packing in the crystal.
(b)
Interpretation:
The given melting points are to be matched with the given compounds.
Concept introduction:
Melting point is temperature above which it is changed from solid to liquid state. It is an important property for a compound as it is used to determine the purity of the compounds. In case of impurities, the analyzing compounds melting point will be low. The melting point of the branched hydrocarbons is less as compared to the straight chain hydrocarbons as the branching perturbs the packing in the crystal.
Want to see the full answer?
Check out a sample textbook solutionChapter 2 Solutions
Organic Chemistry
- Write the bond line formula of the following compounds: (a) 4-methyl-2-hexene, two geometrical (stereoisomers) isomers (b) 3-fluoro-2-methylheptanol (3-fluoro-2-methylheptan-1-ol) (c) 4-methyl-hex-1-yn-3-olarrow_forwardDraw 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-ene(d) 1,3-cyclohexadienearrow_forwardDraw the structure of an alkane with molecular formula C7H16 that contains (a) one 4° carbon; (b) only 1° and 2° carbons; (c) 1°, 2°, and 3° hydrogens.arrow_forward
- 2,3-Dibromoprop-1-ene (C3H4Br2) has four H atoms. Suppose that any of these H atoms can be replaced by a Cl atom to yield a molecule with the formula C3H3Br,Cl. (a) Identify two H atoms where this substitution would yield constitutional isomers of C3H3Br,CI; (b) enantiomers of C3H3Br,Cl; (c) diastereomers of C3H3Br,Cl. H нн H Br Br 2,3-Dibromoprop-1-enearrow_forwardDraw the structural formulas for the following compounds. Include all the bonds to hydrogen atoms. Be sure to answer both parts. (a) 1,2,4-trimethylbenzene: (b) chlorobenzene:arrow_forwardDraw the skeletal (bond-line) structures of all isomers of C4H8O (including configurational isomers) that contain an alkene and an ether. There should be 5 structures.arrow_forward
- 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_forwardWrite Lewis structures and describe the molecular geometry at each carbon atom in the following compounds:(a) cis-3-hexene(b) cis-1-chloro-2-bromoethene(c) 2-pentyne(d) trans-6-ethyl-7-methyl-2-octenearrow_forwardTell whether the following pairs of compounds are identical, constitu- tional isomers, stereoisomers, or unrelated. and trans-1,4-dibromocyclohexane (a) cis-1,3-Dibromocyclohexane (b) 2,3-Dimethylhexane and 2,3,3-trimethylpentane (C) CI CI and CIarrow_forward
- Cyclopropane (C3H6, a three-membered ring) is more reactive than most other cycloalkanes.(a) Draw a Lewis structure for cyclopropane.(b) Compare the bond angles of the carbon atoms in cyclopropane with those in an acyclic (noncyclic) alkane.(c) Suggest why cyclopropane is so reactive.arrow_forward(b) Draw structural formulas of at least two alkynes of each molecular formula.(1) C6H10arrow_forwardIndicate whether each statement is true or false. (a) Butanecontains carbons that are sp2 hybridized. (b) Cyclohexaneis another name for benzene. (c) The isopropyl group containsthree sp3-hybridized carbons. (d) Olefin is anothername for alkyne.arrow_forward
- 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