Concept explainers
(a)
Interpretation:
More stable alkene should be identified from the given
Concept introduction:
The amount of heat released in a hydrogenation reaction is known as heat of hydrogenation
The most stable alkene has the smallest heat of hydrogenation.
The stability of an alkene increases as the number of alkyl substituents bonded to its
The stability of an alkene increases as the number of hydrogen bonded to its
(b)
Interpretation:
Less stable alkene should be identified from the given alkenes.
Concept introduction:
The amount of heat released in a hydrogenation reaction is known as heat of hydrogenation
The most stable alkene has the smallest heat of hydrogenation.
The stability of an alkene increases as the number of alkyl substituents bonded to its
The stability of an alkene increases as the number of hydrogen bonded to its
(c)
Interpretation:
The alkene which has the smallest heat of hydrogenation should be identified from the given alkenes.
Concept introduction:
The amount of heat released in a hydrogenation reaction is known as heat of hydrogenation
The most stable alkene has the smallest heat of hydrogenation.
The stability of an alkene increases as the number of alkyl substituents bonded to its
The stability of an alkene increases as the number of hydrogen bonded to its
Want to see the full answer?
Check out a sample textbook solutionChapter 5 Solutions
EBK ORGANIC CHEMISTRY
- a. HN02 H12504 b. draw the resonance C. Which resonance Structure is most stable ? would react faster than tollene at 400°C. Wing?arrow_forwardBromide Bhas normal activity (for a secondary bromide) towards SN1 substitution, but A has much higher reactivity and Chas much lower reactivity.arrow_forwardRank the following radicals in order of increasing stability.arrow_forward
- G.154.arrow_forwardThe Diels–Alder reaction, a powerful reaction discussed in Chapter 14, occurs when a 1,3-diene such as A reacts with an alkene such as B to form the six-membered ring in C. a.Draw curved arrows to show how A and B react to form C. b.What bonds are broken and formed in this reaction? c.Would you expect this reaction to be endothermic or exothermic? d.Does entropy favor the reactants or products? e. Is the Diels–Alder reaction a substitution, elimination, or addition?arrow_forwardIn each of the cases below, which isomer is more stable? a. 1-bromo-2-methylcyclohexane: b. c. 1-bromo-4-isopropylcyclohexane: 1,3-diethylcyclohexane:arrow_forward
- Kk.278. Please explain how to get the answerarrow_forwardWhich is the most stable: 3,4-dimethyl-2-hexene, 2,3-dimethyl-2-hexene, or 4,5-dimethyl-2-hexene? a. Which compound has the largest heat of hydrogenation? b. Which compound has the smallest heat of hydrogenation?arrow_forwardAddition of HCl to alkene X forms two alkyl halides Y and Z.a.Label Y and Z as a 1,2-addition product or a 1,4-addition product. b. Label Y and Z as the kinetic or thermodynamic product and explain why. c.Explain why addition of HCl occurs at the indicated C=C (called an exocyclic double bond), rather than the other C=C (called an endocyclic double bond).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