nucleophile means nature of compound that tends to donates pair
of electrons to form bond.
Factors that you may choose-
- compounds/molecules availability of electrons to donate or
elctron rich
- higher charge , more nucleophile in nature
- less electronegative atom , means more nucleophile because it
doesn't tend to attach tighly electrons, make easily available to
donate or vice-versa.
- structure of the compound i.e-steric hindered less nucleophile
limits the donation ability of electrons.
basicity of compound that can donates its electrons to H atoms,
or that copletely dissociate into hydroxyl ion in aqeous
solution.
Factors that you may choose-
- for strong base the pH paper will show around 14 pH value
- for weak base it shows pH value between 7-13 or less than
14
- strong base shows high reactivity.