A group which deactivites the benzene ring towards eletrophilic substitution but which directs the incoming group principally to the o- and p- positons is

A group which deactivites the benzene ring towards eletrophilic substi

1.	A group which deactivites the benzene ring towards eletrophilic substitution but which directs the incoming group principally to the o- and p- positons is
Answer» `-NH_(2)` `-Cl` `-NO_(2)` `-C_(2)H_(5)` Solution :Electron accepting groups which MAKE the substitution difficult are known of deactiviting groups. The group or substituent already PRESENT on the RING also decides the position of incoming group. Ortho`-` and para`-` directing groups are as follow `-CH_(3),C_(2)H_(5)(-R),-NH_(2),-OH, `halogens, `(Cl,Br,I)`