Category: Uncategorized

Which of the following energy diagrams represents the course of an endothermic E1 reaction?

Identify the mechanistic pathways, respectively, for the products in the following reaction.

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophile, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, racemization, hyperconjugation, alkyl halides, inversion):     A(an) …………………………….. has an electron-deficient atom that is capable of accepting a pair of electrons. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Which of the following alkyl halides undergoes the fastest SN2 reaction with sodium azide, NaN3?

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophiles, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, racemization, hyperconjugation, alkyl halides, inversion):     A(an) …………………………….. has an electron-rich atom that is capable of donating a pair of electrons. Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Which of the following statements about a two-step reaction mechanism is true?

Which of the following shows the first step for a stepwise elimination.

What kind of reaction does the conversion of A to D represent?  

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophile, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, racemization, hyperconjugation, alkyl halides, inversion):     Alkyl halides undergo ……………………………… reactions with nucleophiles.  Complete word/phrase and correct spelling (verbatim) is required. No partial credit.

Select the word or phrase that complete each sentence (constitutional isomers, diastereomers, enantiomers, meso compounds, higher, lower, reaction, addition, carbocation, carbanion, nucleophile, electrophile, elimination, heterolysis, homolysis, reagent, substitution, stronger, weaker, charge, concerted, two step, SN1, SN2, racemization, hyperconjugation, alkyl halides, inversion):  (   Polar protic solvents favor …………………..  mechanism.   Complete word/phrase and correct spelling (verbatim) is required. No partial credit.