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प्रश्न
Account for the following.
pKb of aniline is more than that of methylamine.
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उत्तर
In aniline, the lone pair of electrons on the N-atom is delocalized over the benzene ring. As a result electron density on the nitrogen decreases. In contrast in CH3NH2, the +I effect of CH3 increases the electron density on the N-atom. Therefore, aniline is a weaker base than methylamine and hence its pKb value is more than that of methyl amine.
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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
Write the number of moles of ethanoyl chloride required for complete acylation of N, N-dimethylaniline.
What is the action of nitrous acid on the following compounds?
Isopropyl amine
\[\ce{C6H5NO2 ->[Fe/HCl] A ->[NaNO2/HCl][273 K] B ->[H2O][283 K] C}\] ‘C’ is:
Which one of the following is most basic?
Write a short note on the following.
Ammonolysis
Classify the following amine as primary, secondary or tertiary:
Account for the following:
Aniline does not undergo Friedel-Crafts reaction.
Write short note on the following.
Ammonolysis
