Question

Correct order of rate of EAS(electrophilic aromatic substitution) is:

• A. c $>$ b $>$ a $>$ d
• B. c $>$ d $>$ a $>$ b
• C. a $>$ b $>$ c $>$ d
• D. c $>$ d $>$ b $>$ a

Answer 1

Answer: (D)

c $>$ d $>$ b $>$ a

Nitro group is highly deactivating for electrophillic aromatic substitution

Chloro group is slightly deactivating due to strong negative inductive effect( ring becomes electron defficient)

Methyl is activating group

By default benzene ring is slightly activated towards EAS

thus the order is

c > d > b > a

Option D