# Exercises

Exercise

How are the remaining substituents arranged in the $SN2$ reaction's transition state with respect to the central carbon?

correct

wrong

partly correct

 Bigonal planar. No, sorry. Tetrahedral. Sorry, that is wrong. Square. Sorry, that is not correct. Trigonal planar. Correct! Tetragonal planar. No, sorry.
Exercise

In the $SN2$ reaction's transition state, the central carbon is ...

 ... $sp$-hybridized. No, sorry. ... $sp2$-hybridized. Yes, that is correct! ... $sp3$-hybridized. Sorry, that is wrong. ... not hybridized at all. No, sorry.