Advertisements
Advertisements
प्रश्न
Among the following, which has the highest value of pKb?
पर्याय
Advertisements
उत्तर
Explanation:
The pKb number is proportional to the basic strength. The electron density on the nitrogen atom drops due to the presence of the electron-withdrawing NO2 group.
As a result, phenylmethanamine is the least basic. Thus, it will have the highest pKb value.
APPEARS IN
संबंधित प्रश्न
Arrange the following:
Aniline, p-nitroaniline, p-methylaniline - in the increasing order of their basic strength
Write the chemical equations involved when aniline is treated with the following reagents: HCI
Arrange the following:
In increasing order of basic strength:
C6H5NH2, C6H5NHCH3, C6H5CH2NH2
Arrange the following:
In decreasing order of basic strength in the gas phase:
C2H5NH2, (C2H5)2NH, (C2H5)3N and NH3
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)
Account for the following:
Acylation of aniline is carried out in the presence of pyridine.
When ethanol is mixed with ammonia and passed over alumina the compound formed is which compound?
What is the correct decreasing order of the basic character of the three amines and ammonia?
Arrange the decreasing order of pKb values.
\[\ce{C6H5NH2, C6H5NHCH3, C6H5CH2NH2, CH3NH2, NH3}\]
