Account for the following: Ethylamine is soluble in water whereas aniline is not?

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Solution

Ethylamine is soluble in water whereas Aniline is not :
Ethylamine is known to be dissolved in water due to the reason that it is capable of forming intermolecular hydrogen bonds with water.
However, in the case of aniline, the bulk of carbon present in the molecule prevents the formation of effective hydrogen bonding with water and makes it insoluble.
In other words, aniline does not undergo H−bonding with water easily due to the presence of a large hydrophobic $- C_{6} H_{5}$ (Phenyl) group, which can be given as:
However the formation of H bonding in case of Ethylamine with water can be shown as :
Hence, ethylamine is soluble in water whereas aniline is not.

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Q. Account for the following:
(i)

p K_{b}

of aniline is more than that of methylamine.
(ii) Ethylamine is soluble in water whereas aniline is not.
(iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

Account for the following

(i) $p K_{b}$ of aniline is more than that of methyl amine.

(ii) Ethylamine is soluble in water whereas aniline is not

(iii) Methyl amine in water reacts with ferric chloride to precipitate hydrated ferric oxide

(iv) Although amino group is o- and p- directing in aromatic electrophilic substitution, aniline on nitration gives a substantial amount of m-nitroaniline

(v) Aniline does not undergo Friedel Crafts reaction

(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines

(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines

Account for the following:

(i) pK_bof aniline is more than that of methylamine.

(ii) Ethylamine is soluble in water whereas aniline is not.

(iii) Methylamine in water reacts with ferric chloride to precipitate hydrated ferric oxide.

(iv) Although amino group is o, p− directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.

(v) Aniline does not undergo Friedel-Crafts reaction.

(vi) Diazonium salts of aromatic amines are more stable than those of aliphatic amines.

(vii) Gabriel phthalimide synthesis is preferred for synthesising primary amines.

Q. Ethylamine is not soluble in water whereas aniline is.
If this is true enter 1, if false enter 0.

Account on the statement:

Ethylamine is soluble in water, whereas aniline is insoluble.

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