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Home » Account for the following:(i) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.(ii) Although the amino group is o– and p– directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Account for the following:
(i) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.
(ii) Although the amino group is o– and p– directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Amines | CBSE | Chemistry | Class 12 | NCERT
Account for the following:
(i) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.
(ii) Although the amino group is o– and p– directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.

(i) Methylamine in the water when made to react with ferric chloride, precipitates hydrated ferric oxide.

Water is less basic than methylamine due to the presence of the – CH3 group and the + I effect.

By acquiring H+ ions from water, methylamine produces OH – ions in water.

In the above process, Ferric chloride ( FeCl 3 ) splits forming Fe3 + & Cl – ions in water.

OH – ion then combines with Fe3+ ion and forms an impulsive of hydrated ferric oxide.

(ii) Aniline when nitrated gives a substantial amount of m – nitroaniline, while the amino group is o, p – directing in aromatic electrophilic substitution reactions.

Nitration takes place in an acidic environment. Aniline is protonated in an acidic media to produce anilinium ion (which is meta–directing).

Due to the reason stated above, nitration aniline gives a considerable amount of m – nitroaniline.

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