Question

If the dipole moment of toluene and nitrobenzenes are 0.43 d and 3.93d, then what is the expected dipole -moment of p-nitrotoluene

Answer 1

p-nitrotoluene will have dipole moment of 4.36D(.43+3.93) bcoz NO2 and CH4 group will have dipole moment in same direction so their moment will get added.