S. What is the relationship between the two structures shown? A) Constitutional
ID: 1033652 • Letter: S
Question
S. What is the relationship between the two structures shown? A) Constitutional isomers B) Stereoisomers C) Different drawings of the same conformation of the same compound. D) Different conformations of the same compound. 16. The most stable conformation of the compound to the right has CH-CH A) B) C) D) an axial methyl group and an axial ethyl group. an axial methyl group and an equatorial ethyl group. an equatorial methyl group and an equatorial ethyl group. an equatorial methyl group and an axial ethyl group CHy statement is correct concerning the relative stabilities of the two conformations, A and B, belowi? CHy A. B. C. D. A is more stable. B is more stable. A and 8 are equal in stabilities. A and 8 are not equal in stability, but the preferred conformation cannot be determined by inspection. 18. Which constitutional isomer of dimethylcyclohexane does not exhibit cis-trans isomerism? A. 1,1-dimethylcyclohexane B. 1,3-dimethylcyclohexane C. 1,2-dimethylcyclohexane 19. What is the IUPAC name of the compound shown below? A. cis-1 B.trans-1,2-diethylcyclobutane Ccis-1,3-diethylcyclobutane D. trans-1,3-diethylcyclobutane 20. What is the IUPAC name of the compound shown below? A. cis-1,3-dimethylcyclohexane B. trans-1,3-dimethylcyclohexane C. cis-1,4-dimethylcyclohexane D. trans-1,5-dimethylcyclohexaneExplanation / Answer
15.A) constitutional isomers
16. D) an equatorial methyl and axial ethyl group
17. C) A & B are equal in stabilities
18. A) 1,1-dimethyl cyclohexane
19. C) cis-1,3-diethyl cyclobutane
20. B) trans-1,3-dimethyl cyclohexane
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