Question

Which of the following is true?
A.Alkyl Amines are more basic than arylamines. Benzylamine is more basic than aniline.
B.Alkyl Amines are less basic than arylamines. Benzylamine is less basic than aniline.
C.Alkyl Amines are more basic than arylamines. But, benzylamine is less basic than aniline.
D.Alkyl Amines are less basic than arylamines. But, benzylamine is more basic than aniline.

Answer 1

Bases, on the other hand, have a bitter taste and are slick to the touch. The term "alkali" refers to a base that may be dissolved in water. Salts are formed when these compounds react chemically with acids. It's common for bases to become red litmus blue.

Complete answer: Alkyl Amines have a higher level of basicity than arylamines. Aniline is more basic than benzylamine.
In arylamines, the lone pair of electrons on the N atom is delocalized because it is conjugated to the benzene ring.
In chemistry, a conjugated system is a molecule's system of linked p orbitals with delocalized electrons, which decreases the molecule's total energy and promotes stability. They enable electron delocalization across all neighbouring aligned p orbitals.
The lone pair of electrons on the N atom in arylamines, on the other hand, is not delocalized since it is not in conjugation with the benzene ring.
Because the nitrogen lone-pair electrons are delocalized by interaction with the aromatic ring electron system, arylamines are less basic than alkylamines. This makes electrons less accessible. The +I electron releasing action of the alkyl group renders alkyl amines extremely basic.
As a result, in alkylamines, the lone pair of electrons on the N atom is more easily accessible for protonation than the lone pair of electrons on the N atom in arylamines.
Hence option A is correct.

Note:
Pi bonds are covalent chemical connections in chemistry that develop when two lobes of an orbital on one atom overlap two lobes of an orbital on another atom laterally. At a common nodal plane travelling across the two bound nuclei, each of these atomic orbitals has zero electron density.