PSU CHEM 210 FINAL REVIEW EXAM
WITH CORRECT QUESTIONS AND
ANSWERS 2025
E2 Reaction - CORRECT ANSWERSOne-Step with no intermediates, Base
takes off proton + LG leaves with double bond formation.
What type of carbons do E2 rxns favor? - CORRECT ANSWERSTertiary
What is a Zaitsev product? - CORRECT ANSWERSDouble bond formation on
more substituted carbon
What is a Hoffman product? - CORRECT ANSWERSDouble bond formation on
less substituted carbon
When using a stericallly hindered base (t-BuOK, LDA), which product is more
favorable? - CORRECT ANSWERSHoffman
When using Eto- or less sterically hindered base, which product is more
favorable? - CORRECT ANSWERSZaitsev
E1 Reaction - CORRECT ANSWERS2 step process, LG leaves and forms
carbocation, then base takes off proton and makes double bond
, What type of carbocations do elimination reactions prefer? - CORRECT
ANSWERSTertiary
What is the rate determining step of an E1 reaction? - CORRECT ANSWERSLG
leaving
What stereochemistry do E1 reactions usually want? - CORRECT
ANSWERSTrans
If the substrate is OH in a potential E1 reaction, what must be done before
anything else? - CORRECT ANSWERSNeed a SA to protonate
What makes a better nucleophile? - CORRECT ANSWERSLarge atoms
What do halogens usually react as? - CORRECT ANSWERSNucleophiles
What energy level does the electrophile contribute to? - CORRECT
ANSWERSLumo
What energy level does the nucleophile contribute to? - CORRECT
ANSWERSHomo
WITH CORRECT QUESTIONS AND
ANSWERS 2025
E2 Reaction - CORRECT ANSWERSOne-Step with no intermediates, Base
takes off proton + LG leaves with double bond formation.
What type of carbons do E2 rxns favor? - CORRECT ANSWERSTertiary
What is a Zaitsev product? - CORRECT ANSWERSDouble bond formation on
more substituted carbon
What is a Hoffman product? - CORRECT ANSWERSDouble bond formation on
less substituted carbon
When using a stericallly hindered base (t-BuOK, LDA), which product is more
favorable? - CORRECT ANSWERSHoffman
When using Eto- or less sterically hindered base, which product is more
favorable? - CORRECT ANSWERSZaitsev
E1 Reaction - CORRECT ANSWERS2 step process, LG leaves and forms
carbocation, then base takes off proton and makes double bond
, What type of carbocations do elimination reactions prefer? - CORRECT
ANSWERSTertiary
What is the rate determining step of an E1 reaction? - CORRECT ANSWERSLG
leaving
What stereochemistry do E1 reactions usually want? - CORRECT
ANSWERSTrans
If the substrate is OH in a potential E1 reaction, what must be done before
anything else? - CORRECT ANSWERSNeed a SA to protonate
What makes a better nucleophile? - CORRECT ANSWERSLarge atoms
What do halogens usually react as? - CORRECT ANSWERSNucleophiles
What energy level does the electrophile contribute to? - CORRECT
ANSWERSLumo
What energy level does the nucleophile contribute to? - CORRECT
ANSWERSHomo
