Account for the following: (i) Primary arnimes (R-NH_(2)) have higher boiling point than tertiary amines (R_(3)N). (ii) Aniline does not undergo Friedel -Crafts reacton. (iii) (CH_(3))_(2)NH is more basic than (CH_(3))_(3)N is an aqueous solution.

Account for the following: (i) Primary arnimes (R-NH_(2)) have higher

1.	Account for the following: (i) Primary arnimes (R-NH_(2)) have higher boiling point than tertiary amines (R_(3)N). (ii) Aniline does not undergo Friedel -Crafts reacton. (iii) (CH_(3))_(2)NH is more basic than (CH_(3))_(3)N is an aqueous solution.
Answer» Solution :(i) Due to MAXIMUM intermolecular hydrogen bonding in primary amines (due to presence of morenumber oif H-atoms), primary amines have heigher boilig point in comparison to TERTIARY amines (ii) Aniline does not undergo Friedel-Crafts reaction due to acid base reaction. Aniline and a Lewis acid /Protic Acid, which is used in Friedel crafts reaction. (III) In `(CH_(3))_(3)N` there is maximum steric hindrance and least solvation but in `(CH_(3))_(2)NH` the solvation is more group, di-methyl amine is still a stronger base than trimethyl amine.