(a)
Interpretation:
The reason why heat of hydrogenation for cis isomer is larger than trans isomer has to be indicated.
Concept Introduction:
Hydrogenation: It is the reaction between compounds with unsaturated bonds and within
Syn addition: When two substituents are added over double or triple bond on same side of the compound simultaneously is called syn addition.
Syn elimination: When two substituents bonded in same side of a compound gets cleaved from the substance simultaneously then the elimination is called syn elimination.
cis isomer: The compound with two
Trans isomer: The compound with two functional groups are present on opposite side of the carbon chain.
(b)
Interpretation:
The ration of trans to cis isomer has to be determined.
Concept Introduction:
Hydrogenation: It is the reaction between compound with unsaturated bonds and with
Syn addition: When two substituents are added over double or triple bond on same side of the compound simultaneously is called syn addition.
Syn elimination: When two substituents bonded in same side of a compound gets cleaved from the substance simultaneously then the elimination is called syn elimination.
cis isomer: The compound with two functional groups are present on same side of the carbon chain.
Trans isomer: The compound with two functional groups are present on opposite side of the carbon chain.
Want to see the full answer?
Check out a sample textbook solutionChapter 6 Solutions
Organic Chemistry
- We have covered several oxidants that use a multi-valent atom (Cr, Cl, S, or I) as their active species, going from a higher oxidation state before the oxidation to a lower oxidation state after oxidizing the alcohol. Draw the structure of the following atoms, before and after the oxidation of an alcohol to a ketone or aldehyde. How many bonds to oxygen does each atom have before and after the oxidation? (a) the Cr in chromic acid (b) the Cl in sodium hypochlorite (c) the S in the Swern oxidationarrow_forwardThe IUPAC name of the compound H- is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal ( The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile (c) electrophile can be either neutral or ar positively charged species and can form a bond by accepting a pair of electrons from a nucleophile (d) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile.. Which among the given molecules can exhibit tautomerism? Ph Ph I II III (a) III only (c) Both I and II (b) Both I and III (d) Both II and III 1) Which of the following biphenyls is optically active?arrow_forwardPredict which member of each group is most soluble in water, and explain the reasons for your predictions.(a) butan-1-ol, pentan-1-ol, or propan-2-ol(b) chlorocyclohexane, cyclohexanol, or cyclohexane-1,2-diol(c) phenol, cyclohexanol, or 4-methylcyclohexanolarrow_forward
- The heat of combustion of decahydronaphthalene(C10H18) is -6286 kJ/mol. The heat of combustion ofnaphthalene (C10H8) is -5157 kJ/mol. (In both casesCO2(g) and H2O(l) are the products.) Calculate the heat of hydrogenationand the resonance energy of naphthalene.arrow_forwardBoth 1,2-dihydronaphthalene and 1,4-dihydronaphthalene may be selectively hydrogenated to 1,2,3,4-tetrahydronaphthalene.One of these isomers has a heat of hydrogenation of 101 kJ/mol (24.1 kcal/mol), and the heat of hydrogenation of the other is 113 kJ/mol (27.1 kcal/mol). Match the heat of hydrogenation with the appropriate dihydronaphthalene.arrow_forwardWe have covered several oxidants that use a multi-valent atom (Cr, Cl, S, or I) as their active species, going from a higher oxidation state before the oxidation to a lower oxidation state after oxidizing the alcohol. Draw the structure of the following atoms, before and after the oxidation of an alcohol to a ketone or aldehyde. How many bonds to oxygen does each atom have before and after the oxidation? (a) the I in the DMP reagent (b) the carbinol C in the alcohol that is oxidizedarrow_forward
- The IUPAC name of the compound is (a) 5-formylhex-2-en-3-one (b) 5-methyl-4-oxohex-2-en-5-al (c) 3-keto-2-methylhex-5-enal (d) 3-keto-2-methylhex-4-enal The correct statement regarding electrophile is (a) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from another electrophile (b) electrophiles are generally neutral species and can form a bond by accepting a pair of electrons from a nucleophile (c) electrophile can be either neutral or positively charged species and can form a bond by accepting a pair of electrons from a nucleophile (d) electrophile is a negatively charged species and can form a bond by accepting a pair of electrons from a nucleophile, Which among the given molecules can exhibit tautomerism? Ph Ph I III (a) III only (b) Both I and III (d) Both II and III (c) Both I and II 5) Which of the following biphenyls is optically active? IIarrow_forwardOnly three stereoisomers are possible for 2,3-dibromo-2, 3-dichlorobutane. Draw them, indicating which pair are enantiomers (optical isomers). Why does the other isomer not have an enantiomer?arrow_forward1.Name and draw the products of each reaction. (a) 3-methyl oct-2-ene + hydrochloric acid (b) 2-fluoro-2-phenyl butanoic acid + ethanol → 1arrow_forward
- The heat of combustion of decahydronaphthalene (C10H18) is -6286 kJ/mol. The heat of combustion of naphthalene 1C10H82 is -5157 kJ/mol. (In both cases CO2(g) and H2O(l) are the products). Calculate the heat of hydrogenation and the resonance energy of naphthalene.arrow_forwardDisregarding stereoisomers, draw the structures of all alkenes with molecular formula C5H10. Which ones can exist as cis–trans isomers?arrow_forwardIn an advanced synthetic chemistry experiment, a researcher prepares a compound, ZY-7, by reacting a ketone (C5H100) with hydroxylamine (NH2OH), followed by heating in the presence of an acid catalyst. The resulting compound, ZY-7, is then treated with a solution of sodium nitrite (NaNO2) and hydrochloric acid (HCI) at low temperature. Identify the class of compound that ZY-7 most likely belongs to after this series of reactions." A) Amide B) Oxime C) Nitro compound D) Diazonium salt E) Ester Don't use chatgpt please provide valuable answerarrow_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