Write short notes on ortho, para directors in aromatic electrophillic substitution reactions.

Write short notes on ortho, para directors in aromatic electrophillic

1.	Write short notes on ortho, para directors in aromatic electrophillic substitution reactions.
Answer» Solution :`{:(A,-,CH_(2)=CH_(2),-,,"ETHENE"),(B,-,UNDERSET(Cl)underset(\|)(C )H_(2)-underset(Cl)underset(\|)(C )H_(2),-,1,2-"dichloro ethane"),(C,-,HCHO,,-,"formaldehyde"),(D,-,CH-=CH,-,,"ACETYLENE"):}`