PROBLEMS OF ELIMINATION REACTIONS

Indicate the most probable major products that are formed when treating the following haloalkanes with sodium ethoxide in ethanol or with potassium tert-butoxide in 2-methyl-2-propanol. a) chloromethane, b) 1-bromopentane, c) 2-bromopentane, d) 1-chloro-1-methylcyclohexane, e) (1-bromoethyl)cyclopentane, f) (2R,3R)-2-chloro-3-ethylhexane .