Concept explainers
(a)
To determine: The compound that has zero dipole moment and higher boiling point.
Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.
Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.
Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.
(b)
To determine: The compound that has zero dipole moment and higher boiling point.
Interpretation: The compound that has zero dipole moment and higher boiling point is to be identified.
Concept introduction: The dipole moment gives the polarity of the compound due to polarity difference of the atoms of the compound. It gives the charge separation of the molecule.
Larger the difference in the electronegativies of the atoms, larger is the dipole moment of the molecule. The compound that has high dipole moments has high boiling point due to presence of dipole-dipole attraction.
(c)
To determine: The stability of the given compounds and the amount of energy that makes one of them stable.
Interpretation: The stability of the given compound is to be determined and the amount of energy that makes one of them stable is to be calculated.
Concept introduction: The stability of
Heat of hydrogenation of an alkene is the standard enthalpy for the catalytic hydrogenation of the alkene. The value of heat of hydrogenation is always negative.
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Organic Chemistry (9th Edition)
- Write a Lewis structure for a compound of molecular formula C5H10O that contains the indicated functional groups. Show the calculation for the degree of hydrogen deficiency of C5H10O. A. aldehyde B. carbon-carbon double bond and alcohol C. carbon-carbon double bond and an ether D. ketonearrow_forwardCH2 H3C H3C COOH Reagents e. PB13 f. NaCN then H3O* g. NBS, CCI4 h. CrO3, H2SO4 а. HBr b. Mg, ether c. CO2, ether then H3O* d. BH3, THF then H2O2, OH"arrow_forwardConvert each compound to a condensed structure. H. H-C-H H H H 1. a. H-C-C-C-C-C-H H HH H H-C-H H HHC: HH I I I I b. H-С-с--с-с-с-н :Br: H HHH H H. HHH c. H-C-C- C-0-C-C-C-H H. H-C-H H H H HHH O: d. H-C-C-C-C-H HHH CIHarrow_forward
- The given compound, 2-methylbutane is having A. One primary, one secondary and three tertiary carbons B. Three secondary, one primary and one tertiary carbons C. Three primary, one secondary and one tertiary carbons D. One primary, three secondary and one tertiary carbonsarrow_forwardTreatment of 1,2-dimethylcyclopentene with Pt and H2 gas will produce a.cis-1,2-dimethylcyclopentane. b.1,1-dimethylcyclopentane. c.trans-1,2-dimethylcyclopentane. d.mixture of trans and cis-1,2-dimethylcyclopentane.arrow_forward10. Which of the following is the correct structure for 2,3-dimethyl pentane? A. B. C. D. CH3 CH3-CH-CHCH₂CH3 CH3 CH3 CH3 CH3-CH-CH₂CH-CH3 CH3 CH3 CH3CH₂-CH-CH₂CH₂ CH3 CH3-CH-CHCH₂CH3 CH₂CH₂arrow_forward
- Reagents a. CeHsCHO b. NaOH, ethanol c. Pyrrolidine, cat. H* d. H2C=CHCN e. H30* f. LDA g. ELOC(=0)CO,Et h. BRCH2CH=CH2 Na* OEt, ethanol j. Br2, H* k. K* t-BuO 1. CH2(CO2Et)2 m. heat Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda). Submit Answer Try Another Version 1 Item attempt remainingarrow_forwardC. Nomenclature of Cylic Alkanes: If a ring is present in a molecule, the ring is almost always considered the parent chain. Use the word cyclo as a prefix before the alkane name to indicate it is a cyclic parent chain Number the carbons that bear substituents starting with one, and number around the ring towards the closest carbon that bears another substituent group to give all substituents lowest possible numbering. If there are two or more substituents, use alphabetical order to determine where to start numbering. Critical Thinking Question (CTQ): 11. Give the correct IUPAC name for the remaining three compounds below. H,C CH-CH, l-isopropyl-3-methylcycloherane 12. Draw the structures that correspond to the following names: a. 3-ethylheptane b. 1,1-diethylcyclopropane c. 4-sec-butyl-1-isobutyl-2-methylcylcohexane 13. Mono-substituted cycloalkanes do not include the "1" locant. Thus, 1-methylcyclohexane is inaccurate. Draw methylcyclohexane; explain why adding a locant does not add…arrow_forwardA2 1. An alkyne with molecular formula C5H10 2. A ketone with molecular formula C4H8O 3. A ketone with molecular formula C3H8O 4. An alkene with molecular formula C5H8 5. An alkene with molecular formula C5H10 6. An aldehyde with molecular formula C2H4O 7. An aldehyde with molecular formula CH4O 8. A saturated hydrocarbon with molecular formula C6H14arrow_forward
- Which of the following does not contribute to the stability of benzene?a. overlapping pi electrons above and below the ring's plane b. Huckel rule c. conjugation d. nonearrow_forward18. Which carbanion is the most stable A. methyl carbanion (CH3-) B. ethyl carbanion (CH3CH2-) C. isopropyl carbanion ((CH3)2CH-) D.Chloromethyl carbanion (CICH2-) 19. Which structural effect best explains the observed trend below: Compound C-CI bond length (A) 1.78 1.77 1.76 H3C-CI CIH₂C-CI Cl₂HC-CI FH₂C-CI 1.76 A. resonance B. C-H hyperconjugation C. Inductive effect D. steric effect 20. Assuming that each methyl/hydrogen 1,3-diaxial interaction destabilizes the methyl substituted cyclohexane by 0.9 kcal/mole; then what is the energy difference between 2 chair conformations of cis-1,3-dimethylcyclohexane. A. 0.9 kcal/mol B. 1.8 kcal/mol C. 2.7 kcal/mol D. 3.6 kcal/molarrow_forwardReagents a. C6H5CHO b. NaOH, ethanol h. BrCH2CH=CH2 i. Na* OEt, ethanol j. Br2, H* k. K* t-BuO c. Pyrrolidine, cat. H* d. H2C=CHCN e. H3O* f. I. CH2(CO2ET)2 -CH2CH2CN LDA m. heat g. ELOC(=0)CO2ET Select reagents from the table to synthesize this compound from cyclopentanone. Enter the letters of the chosen reagents, in the order that you wish to use them, without spaces or punctuation (i.e. geda).arrow_forward
- Organic Chemistry: A Guided InquiryChemistryISBN:9780618974122Author:Andrei StraumanisPublisher:Cengage Learning