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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3o2164

For nitration of tert-butylbenzene compared with benzene and toluene, which statements are correct?

  1. Atert-butylbenzene is nitrated faster than benzene
  2. Btert-butylbenzene is nitrated faster than toluene
  3. Cthe para isomer is the major mononitration product
  4. Dthe meta isomer is the major product

Answer: A, C

The tert-butyl group is a weakly activating o/p director, so it reacts faster than benzene. It is slightly less activating than methyl (smaller hyperconjugation, with the nitration rate lower than toluene), and its size disfavours ortho attack, so para is the main product. The meta product is minor.
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