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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
Classify the following amine as primary, secondary or tertiary:
(C2H5)2NH
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.
Carbylamine test is given by ____________.
Choose the most correct option.
Identify ‘B’ in the following reactions
\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]
What are amines?
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.
Which of the following amines is most basic in nature in aqueous phase?
Assertion: Acetamide on reaction with KOH and bromine gives acetic acid.
Reason: Bromine catalyses hydrolysis of acetamide.
The product formed by the reaction an aldehyde with a primary amine ____________.
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?
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.
Ammonolysis
Write a short note on the following.
Schotten-Baumann reaction
Write a short note on the following.
Carbylamine reaction
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.
In increasing order of boiling point C6H5OH, (CH3)2NH, C2H5NH2.
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:
The following amine can be classified as (C2H5)2NH:
The following amine can be classified as:
Arrange the following in the increasing order of their basic strength:
C2H5NH2, C6H5NH2, (C2H5)2NH
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:
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 note on the following:
Ammonolysis
Write short notes on the following
Ammonolysis
Write a short note on the following.
Ammonolysis
Write short note on the following.
Ammonolysis
Define Amines.
Write a short note on the following
Ammonolysis
Account for the following:
Aniline does not undergo Friedel-Crafts reaction.
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
Write a short note on the following.
Ammonolysis
