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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
In the following
The compound ‘B’ is _______.
(A) Propan–1–amine
(B) Propan–2–amine
(C) Isopropylamine
(D) Dimethylamine
Choose the most correct option.
The hybridisation of nitrogen in primary amine is ____________.
Choose the most correct option.
Carbylamine test is given by ____________.
Choose the most correct option.
Identify ‘B’ in the following reactions
\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]
How are amines classified?
Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.
A tertiary amine is an organic compound ____________.
Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.
Reason: Bromine catalyses hydrolysis of acetamide.
Which one of the following is most basic?
IUPAC name for the amine is:
\[\begin{array}{cc}
\phantom{.}\ce{CH3}\\
|\phantom{..}\\
\ce{CH3 - N - C - CH2 - CH3}\\
\phantom{.}|\phantom{.....}|\phantom{........}\\
\phantom{}\ce{CH3}\phantom{..}\ce{C2H5}\phantom{....}
\end{array}\]
How will you convert nitrobenzene into m-nitro aniline?
Write a short note on the following:
Gabriel phthalimide synthesis
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
How will you distinguish between primary secondary and tertiary aliphatic amines?
Account for the following.
pKb of aniline is more than that of methylamine.
Account for the following.
Although amino group is o- and p-directing in aromatic electrophilic substitution reactions, aniline on nitration gives a substantial amount of m-nitroaniline.
Arrange the following.
Increasing order of basic strength C6H5NH2, C6H5N(CH3)2, (C2H5)2NH and CH3NH2.
How will you prepare propan-1-amine from 1-nitropropane?
Identify A, B and C.
\[\ce{CH3 - NO2 ->[LiAlH4] A ->[2CH3CH2Br] B ->[H2SO4] C}\]
(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:
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:
Classify the following amine as primary, secondary or tertiary:
Which among the following is the strongest Bronsted base?
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 a short note on the following.
Ammonolysis
Name the distinguishing test for differentiating 1° amine from 2° and 3° amine.
Write short note on the following.
Ammonolysis
Define Amines.
Write short note on the following.
Ammonolysis
Write short note on Ammonolysis.
Write short note on the following:
Ammonolysis
Write a short note on the following.
Ammonolysis
Write a short note on the following.
Ammonolysis
