Question

Pick the solvent that gives the fastest SN₃ reaction between CH₃CH₃Br and -OCH₃.

a) CH₂CH₃OH
b) CH₃OH
c) DMSO
d) H₂O

Answer 1

The solvent that gives the fastest SN3 reaction between CH3CH3Br and -OCH3 is DMSO.

Step-by-step explanation:

The solvent that gives the fastest SN3 reaction between CH3CH3Br and -OCH3 is c) DMSO.

SN3 reactions, also known as nucleophilic substitutions, occur when a nucleophile attacks an electrophilic carbon, causing a displacement of the leaving group. DMSO, or dimethyl sulfoxide, is a polar aprotic solvent that can stabilize negative charges and enhance nucleophilic attack, making it favorable for SN3 reactions.