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प्रश्न
Arrange the following:
In decreasing order of basic strength in the gas phase:
C2H5NH2, (C2H5)2NH, (C2H5)3N and NH3
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उत्तर
In the gas phase, there is no solvation effect. As a result, the basic strength mainly depends upon the +I effect. The higher the +I effect, the stronger is the base. Also, the greater the number of alkyl groups, the higher is the +I effect. Therefore, the given compounds can be arranged in the decreasing order of their basic strengths in the gas phase as follows:
(C2H5)3N > (C2H5)2NH > C2H5NH2 > NH3
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संबंधित प्रश्न
Arrange the following:
In decreasing order of the pKb values:
C2H5NH2, C6H5NHCH3, (C2H5)2NH and C6H5NH2
Arrange the following:
In increasing order of basic strength:
C6H5NH2, C6H5N(CH3)2, (C2H5)2NH and CH3NH2
Arrange the following:
In increasing order of basic strength:
Aniline, p-nitroaniline and p-toluidine
Arrange the following:
In increasing order of basic strength:
C6H5NH2, C6H5NHCH3, C6H5CH2NH2
Write a short note on the following:
Carbylamine reaction
Write the structures of the main products of the following reactions:
The correct increasing order of basic strength for the following compounds is ______.
(I)
(II)
(III)
The correct decreasing order of basic strength of the following species is ______.
\[\ce{H2O, NH3, OH-, NH^{-}2}\]
Account for the following:
Acylation of aniline is carried out in the presence of pyridine.
When methyl iodide is heated with ammonia, what is the product obtained?
When ethanol is mixed with ammonia and passed over alumina the compound formed is which compound?
Which of the following is most basic?
What is the characteristic smell of liquid amines?
Give reasons for the following observation:
pKb of aniline is lower than the m-nitroaniline.
Account for the following:
Arrange the following compounds in the increasing order of their basic strength in aqueous solution: CH3NH2,(CH3)3N,(CH3)2NH
Among the following, which has the highest value of pKb?
Arrange the decreasing order of pKb values.
\[\ce{C6H5NH2, C6H5NHCH3, C6H5CH2NH2, CH3NH2, NH3}\]
The correct order of the increasing basic nature of Ammonia, Methylamine and Aniline is:
