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प्रश्न
How are amines classified?
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उत्तर
Classification of Amines:
i. Amines are classified as primary (1°), secondary (2°), and tertiary (3°) amines.
ii. Their structures are obtained in a simple way by replacing one, two, or three hydrogen atoms of NH3 molecule by alkyl/aryl groups.
iii. Secondary and tertiary amines are further classified as simple or symmetrical amines and mixed or unsymmetrical amines.
iv. When all the alkyl or aryl groups on nitrogen are the same, it is a simple amine. If these groups are different, then the amine is a mixed amine.
v. Amines are also divided into two major classes, namely, aliphatic and aromatic amines on the basis of the nature of the groups attached to the nitrogen atom.
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संबंधित प्रश्न
In the following
The compound ‘B’ is _______.
(A) Propan–1–amine
(B) Propan–2–amine
(C) Isopropylamine
(D) Dimethylamine
Give reasons for the following:
CH3NH2 is more basis than C6H5NH2.
Choose the most correct option.
The hybridisation of nitrogen in primary amine is ____________.
Choose the most correct option.
Which type of amine does produce N2 when treated with HNO2?
Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.
What is the action of nitrous acid on the following compounds?
Isopropyl amine
How are amines classified depending on the functional group? Give one example of each class of amines.
A tertiary amine is an organic compound ____________.
The product formed by the reaction an aldehyde with a primary amine ____________.
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:
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:
Gabriel phthalimide synthesis
Write a short note on the following.
Schotten-Baumann reaction
Write a short note on the following.
Mustard oil reaction
Account for the following.
pKb of aniline is more than that of methylamine.
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 basic strength in gas phase (C2H5)NH2, (C2H5)NH, (C2H5)3N and NH3.
Arrange the following.
In increasing order of boiling point C6H5OH, (CH3)2NH, C2H5NH2.
Arrange the following.
In decreasing order of the pKb values C2H5NH2, C6H5NHCH3, (C2H)2NH and CH3NH2.
Arrange the following.
In decreasing order of basic strength
How will you prepare propan-1-amine from butane nitrile?
How will you prepare propan-1-amine from 1-nitropropane?
Identify A, B and C.
\[\ce{CH3 - NO2 ->[LiAlH4] A ->[2CH3CH2Br] B ->[H2SO4] C}\]
How will you convert diethylamine into N, N-diethyl acetamide?
How will you convert diethylamine into N-nitrosodiethylamine?
(C2H5)2CHNH2. The following amine can be classified as:
The amine formed from an amide by mean of bromine and alkali has how many number of carbon atoms?
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:
Classify the following amine as primary, secondary or tertiary:
(C2H5)2CHNH2
Among the following, which is the strongest base?
Arrange the increasing order of solubility in water.
\[\ce{C2H5Cl, C2H5NH2, C2H5OH}\]
Write 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
Write a short note on the following
Ammonolysis
Write short note on the following.
Ammonolysis
Write short note on Ammonolysis.
Write a short note on the following.
Ammonolysis
Write a short note on the following.
Ammonolysis
