Question

multiple answer 1 point
which statements are true about the role of the solvent in s_n1 reactions? (select all that apply)
polar protic solvents stabilize the carbocation through hydrogen bonding.
polar protic solvents stabilize the leaving group.
nonpolar solvents favor s_n1 reactions.
polar aprotic solvents stabilize the carbocation.
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Explanation:

In \(S_N1\) reactions, polar protic solvents stabilize carbocation (via hydrogen bonding) and leaving group (by solvating it). Nonpolar solvents don't favor \(S_N1\) (as \(S_N1\) involves charged intermediates which need polar environment). Polar aprotic solvents don't stabilize carbocation (they don't have protons for hydrogen - bonding to stabilize positive charge of carbocation).

Answer:

A. Polar protic solvents stabilize the carbocation through hydrogen bonding.
B. Polar protic solvents stabilize the leaving group.