`i.` No reactions, Nucleophiles `(EtO^(Θ))` do not add to alkenes because they are repelled by the `pi bar(e)s` of the alkenes.
`ii.` The `EWG(bar(e)-` withdrawing groups) such as `F` atoms are attached to the `(C=C)` because they reduce the `bar(e)` density of the `pi-` bond and stabilisie th eintermediat carbonions.
