Question

HELP

What is the common UPAC name for the following compound? 1 нс b) 1-methyl-3-cyclohexene d) 1-methyl-4-cyclohexene a) 5 methylcyclohexene c 4 methylcyclohexene Methylcyclohexene e) Which of the following is capable of exhibiting cis-trans isomerism? a) 1-pentene 2. b) 1-butene c) 2- pentene d) Cyclohexene e) Ethene What is the relationship between the following compounds: 3. Н,с a) Conformational isomers b) Constitutional isomers c) Configurational isomer d) Structural isomers e) Positional isomers Which of the following is the most stable alkene? 4. CH H CH,CH-C-CH Н,с- C CH C- сн, CH Hс сH, (a) (b) (c) Н.сH-C CH CH.CH-CH Н.с CH CH3 (d) (e) What is the major product from the acid-catalyzed hydration of 2- 5. ente a) 2-methyl-3-pentanol c) 2- b) 2-methylpentane e) 1-methoxypentane d) 2-methyl-1-pentanol

Answer 1

' IUDAC Natte Ilorierigr. — cc 4- hethyl cyuo Rexene w which of the following Exhibiting ciq - Trans Ans (c) 2-pertene 2-CH3 H H3C\(=hH H3C 18 .- Ç= CH2-City H1 CH₂ - CH2 trans-2-pentena н cis-e-pentene (al/ Hicach I8onerish NCH, -СН2-СН3 . - pentine no cis-trung Two Identical ators are present c= CH2 - CH₂ . I-buthne No cis- Trang I80 herign el e- Ethene not possible cyclohexene not possible

(3) What is the Relationship 136, SH cl, la Hac H x=CH₂ - chloro pro pene " 1- chloro propene ae Con Structural 180 Mere - Ans: 3 constitutional Isomers They Difter in Structures. W which of the most stable alkene. CH3 4 H₂C-CH2 ''(=Cicha accus .Hec - Tara substituted alkene Stability order: thisubstituted > Di Substituted Cubstituted > Maslo Substitutes alkene alkene alkene yetru substituted alkene (frost stube) (Most stable)