# Exercises

Exercise

Which term describes the following condition? The absolute configuration of the reaction center of the substrate remains in a reaction.

correct

wrong

partly correct

 Recession. No, sorry. Retention. Correct! Inversion. Sorry, that s wrong. Invasion. No, sorry. Refusion. Sorry, that is not correct.
Exercise

Which term refers to the following? The absolute configuration of the reaction center of the substrate is inverted in a reaction.

correct

wrong

partly correct

 Recession. No, sorry. Retention. Sorry, that is wrong. Inversion. Yes, that is correct. Invasion. No, sorry. Infusion. Sorry, that is not correct.
Exercise

What is the result of a process in which retention and inversion occur to the same degree?

correct

wrong

partly correct

 Mixed inversion. No, sorry. Mixed retention. Sorry, that is not correct. Invasion. Sorry, that is wrong. Racemization. Correct! Enantiomerization. No, sorry.
Exercise

Under which circumstance do $SN2$ reactions yield stereochemically distinguishable products?