Inductive Effect Vs Electromeric Effect

Inductive Effect	Electromeric Effect
It is a permanent effect which involves slight drifting of shared σ-electrons towards more electronegative atom.	It is a temporary effect which involves complete transfer of π-electrons to one of the bonded atoms.
It operates only in saturated compounds which contain at least one polar bond.	It operates in unsaturated compounds which contain at least one multiple bond which may be polar or non-polar.
It does not need any outside reagent for its operation.	It operates only in the presence of an outside reagent.
It involves a partial separation of charges without formation of ions.	It involves complete transfer of electrons from the reagent to substrate and vice versa. As a result of this effect, ions are formed.