(i) Account for the following : 1. Primary amines (R-NH_(2)) have higher boiling point than tertiary amines (R_(3)N). 2. Aniline does not undergo Friedel-Crafts reaction. 3. (CH_(3))_(2)NH is more basic than (CH_(3))_(3)N in an aqueous solution. (ii) Name two fat soluble vitamins, their sources and the diseases caused due to their deficiency in diet.

(i) Account for the following : 1. Primary amines (R-NH_(2)) have hig

1.	(i) Account for the following : 1. Primary amines (R-NH_(2)) have higher boiling point than tertiary amines (R_(3)N). 2. Aniline does not undergo Friedel-Crafts reaction. 3. (CH_(3))_(2)NH is more basic than (CH_(3))_(3)N in an aqueous solution. (ii) Name two fat soluble vitamins, their sources and the diseases caused due to their deficiency in diet.
Answer» Solution :1. Due to maximum intermolecular hydrogen bonding in primary amines (due to presence of more number of H-atmos), primary have higher BOILING point in comparison to tertiary amines. 2. 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. 3. 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. (ii)