43. Which of the following is the appropriate conversion of (CH3)4C to a skeletal structure? II II IV А) I B) II С) II D) IV 44. What is the condensed formula of the compound below? Br Br CH,CH2CH(CH3)CH,CH(CH3)CHB12 CH;CH,CH2(CH3)CH,CH(CH3)CHBr2 II CH;CH,CH(CH3)CH(CH3)CH2CHB12 CH;CH,CH(CH3)CH2(CH3)CHCHBr2 IV А) I B) II С) I D) IV

43. Which of the following is the appropriate conversion of (CH3)4C to a skeletal structure? II II IV А) I B) II С) II D) IV 44. What is the condensed formula of the compound below? Br Br CH,CH2CH(CH3)CH,CH(CH3)CHB12 CH;CH,CH2(CH3)CH,CH(CH3)CHBr2 II CH;CH,CH(CH3)CH(CH3)CH2CHB12 CH;CH,CH(CH3)CH2(CH3)CHCHBr2 IV А) I B) II С) I D) IV

Chemistry: Principles and Practice

3rd Edition

ISBN:9780534420123

Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Publisher:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer

Chapter22: Organic Chemistry And Biochemistry

Section: Chapter Questions

Problem 88QE

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2) The condensed structure of 2,4-dimethylheptane is Hас— сн—сн-сн—сH2-сH2-СH; ČH3 CHз СНЗСНЗСН2СНЗСН2СH2СHЗ CH-CH-CH2-CH3 I I. CH, CHз Нас- Hас— сн—сн2—сн-сн,—сн—СH—CHз CHз ČH3 CH3 HG -CH2- H3C- -CH--CH2-CHз CHз H3C
Which is the structure of 3,4-dimethylhexane? * CH2 (a) CH3- CH, CH- CH- CH3 CH; CH, CH, (b) CH3- CH- CH – CH ČH3 CH2 CH31 ČH3 (c) CH3- CH, CH- CH-CH- CH3 ČH3 CH-CH; (d) CH;- CH- CH,- CH2- CH- CH3 CH3 CH3 (e) CH3- CH- CH- CH CH3 CH3 a b e
Classify the following hydrocarbons, and draw a Lewis structure for each one. A compound may fit into more than one of the following classifications: alkane cycloalkane aromatic hydrocarbon alkene cycloalkene alkyne cycloalkyne (a) (CH;CH2);CHCH(CH3)2 (b) CH;CHCHCH,CH3 (c) CH;CCCH,CH,CH3 CH,-C=C-CH CH, —CH, —CH, —сн (d) (e) CHCH2 (f) CCH - CHC(CH,), (h) - CH2CH3 (i)
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-ene
The melting points and boiling points of two isomeric alkanes are as follows: CH3(CH2)6CH3, mp = -57 °C and bp = 126 °C; (CH3)3CC(CH3)3, mp = 102 °C and bp = 106 °C. (a) Explain why one isomer has a lower melting point but higher boiling point. (b) Explain why there is a small difference in the boiling points of the two compounds, but a huge difference in their melting points.
Under topic haloalkane
Give the name or condensed structural formula, as appropriate: (a) CH;CHCH3 СHCH-CH-CHCНЗ ČH3 (b) 2,2-dimethylpentane (c) 4-ethyl-1,1-dimethylcyclohexane (d) (CH3),CHCH,CH,C(CH3)3 (e) CH;CH,CH(C,H3)CH,CH,CH,CH3
9. Give a systematic name for each of the following alkanes (a) (b) (c) (d) CH, (e) (f) CH,
IV. Compounds A and B are isomers of the molecular formula C9H19Br. Both yield the same alkene Cin an elimination reaction. Hydrogenation of C yields the product 2,3,3,4 tetramethyl pentane. What are the structures of A, B, and C?
ASAP
Give the the name or condensed structural formula, as appropriate: CH; H H Нн (а) Н—С—С—С—С—С—Н ннн сH; H CH3 (b) CH-CH-CH-CH-CH-CH-CCH-CНCH; CH, CH3 ČH3 (c) 2-methylheptane (d) 4-ethyl-2,3-dimethyloctane (e) 1,2-dimethylcyclohexane
Name or write the condensed structural formula for the fol- lowing compounds: (a) trans-2-pentene (b) 2,5-dimethyl-4-0octene (c) CH3 CH;CH2 CH,ĊHCH,CH3 Н `H (d) Br Br (e) CH-CHЗ НС—ССH-CСНЗ ČH3