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प्रश्न
Give reasons for the following:
CH3NH2 is more basis than C6H5NH2.
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उत्तर
Aromatic amines are far less basic than aliphatic amines. This can be explained as follows:
Resonance stabilisation is there in aniline. It can be regarded as a resonance hybrid of the following structures:
Hence, the lone pair of electrons on the nitrogen atom gets delocalised over benzene ring and thus is less available for protonation.
The electron density on the nitrogen atom is increased by electron-donating inductive effect of the alkyl groups. As a result, aliphatic amines are much stronger bases than aniline.
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संबंधित प्रश्न
Choose the most correct option.
Identify ‘B’ in the following reactions
\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]
What is the action of nitrous acid on the following compounds?
Isopropyl amine
A tertiary amine is an organic compound ____________.
The order of basic strength for methyl substituted amines in aqueous solution is ____________.
Write a short note on the following:
Gabriel phthalimide synthesis
How will you prepare propan-1-amine from butane nitrile?
How will you prepare propan-1-amine from 1-nitropropane?
(C2H5)2CHNH2. The following amine can be classified as:
Classify the following amine as primary, secondary or tertiary:
(C2H5)2CHNH2
Assertion A: Aniline on nitration yields ortho, meta and para nitro derivatives of aniline.
Reason R: Nitrating mixture is a storng acidic mixture.
In the light of the above statements, choose the correct answer from the options given below:
