Ortho and para directing groups are :-
O−,−OH,−OR,−NH2,−NHR−NR2,OOR,NOR,−CH3,alkylgroup,−SH,−SR,−F,−Cl,−Br,−I
Ortho and para directing group give ortho and para substitutents as major products and meta directing as minor products
Also activating groups increase the rate of electrophile aromatic substitution , relative to hydrogen.