Question

7.
Arrange the following compound in increasing order
of reactivity towards aromatic NSR​

Answer 1

Answer:

ANS 1) is correct

Explanation:

so, The reactivity of aryl halides towards nucleophilic substitution increases if any electron withdrawing group,such as NO2

is bonded to the benzene ring at the ortho and para position.

In chlorobenzene, no EWG present. So, it is least reactive.

In o-nitrochlorbenzene, one EWG is present in the ortho position.

In o,p-dinitrochlorobenzene, two nitro groups present. So, it is more reactive than o-nitrochlorbenzene.

In trinitrochlorobenzene, three EWG (NO2

present. So, it is most reactive among all the compounds.

- @Mohib