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Organic Chemistry Questions

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109) What results when cyclopentene oxide is treated with aqueous base?A) a racemic mixture of trans-1,2-diolsB) a meso trans-1,2-diolC) a racemic mixture of cis-1,2-diolsD) a meso cis-1,2-diolE) cyclopentene

51) When cyclohexene is subjected to mercuration in methanol and the resulting mixture is reduced with sodium borohydride, the major organic product is:A) a meso ether.B) a 1:1 mixture of enantiomeric ethers.C) a meso diol.D) a 1:1 mixture of enantiomeric diols.E) methoxycyclohexane.

76) What is the major organic product which results when tetrahydrofuran is reacted with excess HBr?A) 1,2-dibromobutaneB) 1,3-dibromobutaneC) 1,4-dibromobutaneD) 4-bromobutan-1-olE) 3-bromobutan-1-ol

95) When trans-hex-3-ene is treated with PhCO3H, the major organic product is:A) a meso epoxide.B) a 1:1 mixture of enantiomeric epoxides.C) a meso diol.D) a 1:1 mixture of enantiomeric diols.E) hexan-3-ol.

125) What compound is formed when 2,2-dimethyloxirane is treated with ethanol containing a trace of HCl?A) 2-ethoxy-2-methyl-1-propanolB) 1-ethoxy-2-methyl-2-propanolC) 2-ethoxy-2-methyl-2-propanolD) 2-ethoxy-1-butanolE) 1-ethoxy-2-butanol

80) Which of the following compounds would undergo autoxidation most readily?A) dibenzyl etherB) MTBEC) diethyl etherD) isobutyl phenyl ether

40) Which of the following is an acceptable way to synthesize t-butyl ethyl ether?A) treatment of t-butyl bromide with sodium ethoxideB) treatment of ethyl bromide with sodium t-butoxideC) heating a mixture of ethanol and t-butanol in sulfuric acidD) treating t-butyl bromide with Hg(OAc)2E) treating t-butanolwith Hg(OAc)2

67) What are the expected products of the reaction of PhOCH3 with concentrated HI?A) phenol and methanolB) phenol and iodomethaneC) iodobenzene and methanolD) iodobenzene and iodomethane

39) Which pair of reagents would produce the highest yield of (R)-2-ethoxybutane?A) sodium (S)-2-butoxide + iodoethaneB) sodium (R)-2-butoxide + iodoethaneC) sodium ethoxide + (S)-2-iodobutaneD) sodium ethoxide + (R)-2-iodobutaneE) Both B and C would work equally well.

13) What is the correct IUPAC name for the following compound?3-methyl-3,4-epoxypentan-1-olB) 5-hydroxy-3-methyl-2,3-epoxypentaneC) 1-(2-hydroxyethyl)-1,2-dimethyloxiraneD) 3,4-epoxy-3-methylpentan-1-ol

52) When pent-1-ene is treated with mercury(II) acetate in methanol and the resulting product is reacted with NaBH4, what is the primary organic compound which results?A) 3-ethoxypentaneB) 1-methoxypentaneC) 1-ethoxypentaneD) 2-ethoxypentaneE) 2-methoxypentane

4) Which of the following is not a property of ethers which makes them good solvents in organic reactions?A) They dissolve a wide range of polar substances.B) They have relatively high boiling points for their molecular weights.C) They are nonhydroxylic.D) They dissolve a wide range of nonpolar substances.E) They are normally unreactive toward strong bases.

14) Which of the following is not a true statement?A) Dioxanes are six-membered ring ethers.B) Furans are five-membered ring ethers.C) Oxiranes are three-membered ring ethers.D) Oxetanes are five-membered ring ethers.E) Pyrans are six-membered-ring ethers.

64) When hexan-1-ol is treated with conc. H2SO4 at moderate temperatures, ________ is formed via a(n) ________ mechanism.A) di-n-hexyl ether, SN2B) di-n-hexyl ether, SN1C) di-n-hexyl ether, E2D) di-n-propyl ether, E1E) hex-1-ene, SN1

2) Which of the following corresponds to the COC bond angle in dimethyl ether?A) 60°B) 94°C) 110°D) 122°E) 180°

1) What is the hybridization of the oxygen atom in dialkyl ethers?A) sp3B) sp2C) spD) sE) p

7) What complex results when BF3 is dissolved in dimethyl ether?

True or False: Hydrolysis reactions in esters using an acid catalyst is reversible and less efficient than using a base catalyst

organic chemistry is currently defined asa. the study of compounds made only by living cellsb. the study of carbon compoundsc. the study of natural (as opposed to synthetic) compoundsd. the study of hydrocarbons

what chemical change occurs to ATP when it reacts with water and releases energy?

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