For each of the following reactions, give the elimination products; if the products can exist as stereoisomers,

Question:

For each of the following reactions, give the elimination products; if the products can exist as stereoisomers, indicate which isomers are obtained.
a. (R)-2-bromohexane + high concentration of HO-
b. (R)-2-bromohexane + H2O
c. Trans-I -chloro-2-methylcyclohexane 4- high concentration of CH3O-
d. Trans-I -chloro-2-mehylcyclohexane + CH3OH
e. 3-bromo-3-methylpentanc + high concentration of HO
f. 3-bromo-3-methylpentane + 1120