Give reasons Aromatic diazonium salts are more stable than aliphatic diazonium salts.

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Solution

Resonance is observed in aromatic diazonium salts which leads to the delocalisation of positive charge. No such resonance is observed in aliphatic diazonium salts. Hence, aromatic diazonium salts are more stable than aliphatic diazonium salts.

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Similar questions

Q. What is the reason that aromatic diazonium salt is more stable than aliphatic diazonium salt?

Q. (a) Write the reactions involved in the following:

(i) Hoffmann bromamide degradation reaction

(ii) Diazotisation

(iii) Gabriel phthalimide synthesis

(b) Give reasons :

(i)

(C H_{3})_{2} N H

is more basic than

(C H_{3})_{3} N

in an aqueous solution.

(ii) Aromatic diazonium salts are more stable than aliphatic diazonium salts.

Assertion (A): Both aromatic and aliphatic primary amines produce stable diazonium salts on diazotization

Reason (R): Aromatic diazonium salt exhibit resonance

Q. Diazonium salts of aliphatic amines are more stable than those of aromatic amines.
If this is true enter 1, if false enter 0.

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

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