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प्रश्न
How are amines classified?
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
Classify the following amine as primary, secondary or tertiary:
(C2H5)2NH
Give reasons for the following:
CH3NH2 is more basis than C6H5NH2.
Choose the most correct option.
Which type of amine does produce N2 when treated with HNO2?
Choose the most correct option.
Carbylamine test is given by ____________.
Choose the most correct option.
Identify ‘B’ in the following reactions
\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]
Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.
Which of the following amines is most basic in nature in aqueous phase?
\[\ce{Aniline + benzoylchloride ->[NaOH] C6H5 - NH - COC6H5}\] 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 ____________.
Which of the following amines does not undergo acetylation?
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.
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.
Increasing order of basic strength C6H5NH2, C6H5N(CH3)2, (C2H5)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?
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 following amine can be classified as (C2H5)2NH:
The following amine can be classified as:
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
Write short note on the following:
Ammonolysis
Write short notes on the following
Ammonolysis
Name the distinguishing test for differentiating 1° amine from 2° and 3° amine.
Define Amines.
Write a short note on the following.
Ammonolysis
Write short note on the following.
Ammonolysis
Write short note on the following:
Ammonolysis
Write a short note on the following.
Ammonolysis
