How many of the following are activated towards electrophilic aromatic substitution reactions?

Answer

d

Explanation

Rate of electophilic Aromatic substitution reaction `propto` electron density on benzene rinig
Here -Cl & `-overset(O)overset(||)C -CH_(3) NO_(2), C Cl_(3)` groups are electron withdrawing and `-CH_(3) -OH, NHCOCH_(3), -OCOCH_(3)`
are electron releasing group.