Advertisements
Advertisements
प्रश्न
Arrange the following in increasing order of their basic strength:
C2H5NH2, (C2H5)2NH, (C2H5)3N, C6H5NH2
Advertisements
उत्तर
Considering the inductive effect and the steric hindrance of the alkyl groups, C2H5NH2, (C2 H5)2NH2,and their basic strengths as follows:
C2H5NH2 < (C2H5)3N < (C2H5)2NH
Again, due to the −R effect of C6H5 group, the electron density on the N atom in C6H5NH2 is lower than that on the N atom in C2H5NH2.
Therefore, the basicity of C6H5NH2 is lower than that of C2H5NH2. Hence, the given compounds can be arranged in the increasing order of their basic strengths as follows:
C6H5NH2 < C2H5NH2 < (C2H5)3N < (C2H5)2NH
APPEARS IN
संबंधित प्रश्न
Identify the weakest base amongst the following :
(a) p- methoxyaniline
(b) o-toluidine
(c) benzene - 1, 4 - diamine
(d) 4 - aminobenzoic acid
Arrange the following in increasing order of their basic strength :
C6H5 – NH2, C6H5 – CH2 – NH2, C6H5 – NH – CH3
How will you convert Cl−(CH2)4−Cl into hexan-1, 6-diamine?
Account for the following:
Gabriel phthalimide synthesis is preferred for synthesising primary amines.
Arrange the following:
In increasing order of boiling point:
C2H5OH, (CH3)2NH, C2H5NH2
Write a short note on ammonolysis.
Give reasons CH3NH2 is more basic than C6H5NH2.
Arrange the following in the increasing order of their pKb values:
C6H5NH2, C2H5NH2, C6H5NHCH3
Illustrate the following reactions giving suitable example in each case
Ammonolysis
Choose the most correct option.
Which one of the following compounds has the highest boiling point?
Answer in one sentence.
Arrange the following amines in increasing order of boiling points.
n-propylamine, ethylmethyl amine, trimethylamine.
Account for the following:
N-ethylethanamine boils at 329.3 K and butanamine boils at 350.8 K, although both are isomeric in nature.
Dimerisation of carboxylic acids is due to
The hydrogen bond is shortest in
Which of the following have less melting point than amine?
Arrange the following in increasing order of their boiling point:
C2H5OH, C2H5NH2, (C2H5)3N
Write short note on the following:
Ammonolysis
