Question

Define " reaction mechanism." Define "nucleophile." What electronic features characterize a nucleophile? Define "electrophile." What electronic features characterize an electrophile?

Answer 1

reaction mechanism:

It is a theoritical phenomenon, in which it explains the formation of products in several elementary steps through formation of reactive intermediates.

Nucleophile:

Those species which are having more electron density and they can donate electrons.

Ex: all lewis bases can act as nucleophiles (all molecules or ions which have atleast one pair of electron or atleast one pi-bond

Electrophile:

Those species which are electron deficient species i.e., they can accept electrons from nuclophiles

Ex: positive ions, molecules with empty orbitals on central atom can act as electrophiles.

lewis acids are electrophiles.