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प्रश्न
How are amines classified depending on the functional group? Give one example of each class of amines.
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उत्तर
Classification of amines:
- Amines are classified as primary (1°), secondary (2°) and tertiary (3°) amines.
- Their structures are obtained in a simple way by replacing one, two, or three hydrogen atoms of NH3 molecule by alkyl/aryl groups.
- The functional group present in primary amines is referred to as an amino group (–NH2).
e.g. Ethylamine [C2H5 – NH2] - The functional group present in secondary amines is referred to as the imino group (>NH).
e.g. Dimethylamine [(CH3)2NH] - The functional group present in tertiary amines is tertiary nitrogen represented as:
e.g. Trimethylamine [(CH3)3N]
APPEARS IN
संबंधित प्रश्न
Classify the following amine as primary, secondary or tertiary:
(C2H5)2NH
Give reasons for the following:
CH3NH2 is more basis than C6H5NH2.
Isobutylamine is an example of ______.
Choose the most correct option.
Carbylamine test is given by ____________.
Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.
A tertiary amine is an organic compound ____________.
\[\ce{Aniline + benzoylchloride ->[NaOH] C6H5 - NH - COC6H5}\] this reaction is known as ____________.
When aniline reacts with acetic anhydride the product formed is ____________.
The order of basic strength for methyl substituted amines in aqueous solution is ____________.
\[\ce{C6H5NO2 ->[Fe/HCl] A ->[NaNO2/HCl][273 K] B ->[H2O][283 K] C}\] ‘C’ is:
Which of the following amines does not undergo acetylation?
Which one of the following is most basic?
IUPAC name for the amine is:
\[\begin{array}{cc}
\phantom{.}\ce{CH3}\\
|\phantom{..}\\
\ce{CH3 - N - C - CH2 - CH3}\\
\phantom{.}|\phantom{.....}|\phantom{........}\\
\phantom{}\ce{CH3}\phantom{..}\ce{C2H5}\phantom{....}
\end{array}\]
Write a short note on the following.
Ammonolysis
Write a short note on the following.
Schotten-Baumann reaction
Write a short note on the following.
Carbylamine reaction
Write a short note on the following.
Mustard oil reaction
Account for the following.
Gabriel phthalimide synthesis is preferred for synthesising primary amines.
Account for the following.
Ethylamine is soluble in water whereas aniline is not.
Arrange the following:
In increasing order of solubility in water:
C6H5NH2, (C2H5)2NH, C2H5NH2
Arrange the following.
In decreasing order of the pKb values C2H5NH2, C6H5NHCH3, (C2H)2NH and CH3NH2.
How will you prepare propan-1-amine from butane nitrile?
How will you prepare propan-1-amine from propanamide?
How will you prepare propan-1-amine from 1-nitropropane?
(C2H5)2CHNH2. The following amine can be classified as:
The following amine can be classified as (C2H5)2NH:
The following amine can be classified as:
The main product is formed by treating an alkyl or benzyl halide with excess ammonia ____________.
Complete the following reaction.
The reaction of NHO2 with 'A' gives quartering ammonium salt. A is which of the following?
\[\begin{array}{cc}
\ce{O}\phantom{.........}\\
||\phantom{.........}\\
\ce{H - \underset{(A)}{C} - NH - CH3}
\end{array}\]
and
\[\begin{array}{cc}
\ce{O}\\
||\\
\ce{CH3 - \underset{(B)}{C} - NH2}
\end{array}\]
are which type of isomers?
Classify the following amine as primary, secondary or tertiary:
Which among the following is the strongest Bronsted base?
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:
Among the following, which is the strongest base?
Arrange the increasing order of solubility in water.
\[\ce{C2H5Cl, C2H5NH2, C2H5OH}\]
Write short notes on the following
Ammonolysis
Write short note on the following.
Ammonolysis
Write short note on the following.
Ammonolysis
Write short note on Ammonolysis.
