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Amines

Long Answer Type

301. Explain how does the presence or absence of hydrogen on N atom of amines affect the modes of their reactions with nitrous acid.

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Short Answer Type

302.

Explain the following:
Aniline dissolves in aqueous HCl.

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303.

Explain the following:
Amines are stronger bases than ammonia.

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304.

Explain the following:
Aniline is a weak base than ethylamine.

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305.

Explain the following:
The amino group in ethylamine is basic whereas that in acetamide is not basic.

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306.

Explain the following:
Cyclo hexylamine is a stronger base than aniline.

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307.
Describe simple tests for distinguishing:
p-Toluidine and benzyl amine

p-Toluidine, p-CH₃C₆H₄NH₂, undergoes diazotisation and coupling reactions to form azo dyes while benzyl amine (C₆H₅CH₂NH₂), being aryl substituted aliphatic amine, does not do so.

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308.

Describe simple tests for distinguishing:
CH₃ONHC₆H₅ and C₆H₅CONH₂

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309.

Describe simple tests for distinguishing:
C₆H_sNH₃ ⁺Cl^- and p-ClC₆H₄NH₂

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310.

Describe simple tests for distinguishing:
(CH₃)₄N⁺OH and (CH₃)₂NCH₂OH

100 Views