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- (b) Draw the structural formula for each of the following compounds. Lukiskan formula struktur bagi setiap sebatian berikut. (i) 3-fluoro-2,4,4-trimethylpent-2-ene (ii) ethyl butanoate (ii) 2,4-dichloro-3-methylpentanoic acidGive the molecular, structural and displayed formulae of the following molecules: (a) 2,2-dimethylpropane (b) 3-bromo-2, 4, 4-trimethyloctane(a) Draw the condensed structural formulas for the cis andtrans isomers of 2-pentene. (b) Can cyclopentene exhibitcis–trans isomerism? Explain. (c) Does 1-pentyne haveenantiomers? Explain.
- Write structural formulas for all the constitutional isomers of (a) C3H8 (b) C3H6 (c) C3H4Following is a structural formula for cortisol (hydrocortisone). Draw a stereo-representation of this molecule showing the conformations of the five- and six-membered rings.Indicate whether each statement is true or false. (a) Butanecontains carbons that are sp2 hybridized. (b) Cyclohexaneis another name for benzene. (c) The isopropyl group containsthree sp3-hybridized carbons. (d) Olefin is anothername for alkyne.
- Draw the structural formulas for the following compounds. Include all the bonds to hydrogen atoms. Be sure to answer both parts. (a) 1,2,4-trimethylbenzene: (b) chlorobenzene:Draw the constitutional isomers for (a) C2H7N (two) and (b) C3H8O (three).Identify the nature of following pairs of structures. Write not isomers (samecompound), not isomers (different compounds), constitutional isomers, orcis-trans isomers.
- (a) Draw the nine isomers having the formula C7H16 . (Hint: There is one structure with a seven-carbon chain, two structures with six-carbon chains [one is illustrated in the margin above], five structures with a five-carbon chain, and one structure with a fourcarbon chain.)(b) Identify the isomers of C7H16 that are chiral.For each of the following pairs, give the relationship between the two compounds. You many ignore conformational isomerism here, and any conformers may be considered to be identical compounds.Why are these two conformational isomers? I was under the impression that in molecules with only sigma bonds, the bonds can rotate freely, and so the placement of the chlorines wouldn't matter?