Which of the following would be least reactiv | vedclass

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(A) Nitrobenzene is least reactive towards bromine because the presence of the $-NO_2$ group decreases electron density at $o$ and $p$ positions due t

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Nitrobenzene

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(A) Nitrobenzene is least reactive towards bromine because the presence of the $-NO_2$ group decreases electron density at $o$ and $p$ positions due to its strong electron-withdrawing nature ($-I$ and $-M$ effects).Consequently,the attack of the electrophile $(Br^+)$ on the benzene nucleus is difficult because the positive charge at $o$ and $p$ positions repels the incoming electrophile.

Which of the following would be least reactive towards bromine?

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