Draw the major product obtained when the following compounds undergo an SN2 or SN1 mechanism. Indicate No Reaction (NR) if no product is expected.
a. 1-chloro-3-fluorohexane + Sodium methoxide
b. 1-fluoro-4-ethylcyclobutane+ Ethanol
c. α-Bromohydroxyketone bromde + water
d. 1-Chloro-1-methylcyclohexane + Ethanol