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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
Choose the most correct option.
The hybridisation of nitrogen in primary amine is ____________.
Choose the most correct option.
Which type of amine does produce N2 when treated with HNO2?
Choose the most correct option.
Carbylamine test is given by ____________.
Choose the most correct option.
Identify ‘B’ in the following reactions
\[\ce{CH3 - C ≡ N ->[Na/C2H5OH] A ->[NaNO2/dilHCl]B}\]
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.
The main product is formed by treating an alkyl or benzyl halide with excess ammonia ____________.
Write short notes on the following
Ammonolysis
Write short note on Ammonolysis.
Write a short note on the following.
Ammonolysis
