what's responsible for the deep color in nitro aniline and pale pink color in nitrobenzene
Added by Oluwasegun S.
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Nitroaniline is an aromatic compound with an aniline group (NH₂) and a nitro group (NO₂) attached to a benzene ring. Nitrobenzene is an aromatic compound with only a nitro group (NO₂) attached to a benzene ring. Show more…
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(A): Aniline on reaction with $\mathrm{NaNO}_{2} / \mathrm{HCl}$ at $0^{\circ} \mathrm{C}$ followed by coupling with $\beta$ - naphthol gives a dark blue coloured precipitate. [IIT, 2008] (R): The colour of the compound formed in the reaction of aniline with $\mathrm{NaNO}_{2}$ $\mathrm{HCl}$ at $0^{\circ} \mathrm{C}$ followed by coupling with $\beta$ - naphthol is due to the extended conjugation.
Most reactive towards nitration is
ESR Amines and Phenols
Level I
(A): In strongly acidic solutions, aniline becomes more reactive towards electrophilic reagents. (R): The amino group being completely protonated in strongly acidic solution, the lone pair of electrons on the nitrogen is no longer available for resonance.
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