JIPMER2010ChemistryHydrocarbons
The only o p-directing group which is deactivating in nature is
Options
- A- NH ₂
- B-OH
- C-X (halogens)
- D-R (alkyl groups)
Correct answer
C. -X (halogens)
Step-by-step solution
- NH ₂,- OH and -R (alkyl groups) all are o / p -directing and they activates the benzene ring -X (halogens) are however o / p -directing but deactivate the benzene ring by withdrawing electrons from the ring due to -I effect.