(I) Identify the products of dehydration of following alcohols.

(II) Predict the product and mechanism, `E1, E2`, or `E1cB`.

(III) Of the following pairs of structures, choose the componds that better fir the description.
(a) Gives more Saytzeff product in an `E2` reaction

Explanation

(I)
(II)
(c) The `(- overset(overset(O)(||))(C)-)` group is EWG, so in the presence of strong `EtO^(Theta)`, the formation of `C_(B)` is easier and this conjugate base is stabilised by resonance `(E1cB)`
(III) .