Find the incorrect statement regarding primary aliphatic amines
(a) They can be produced by Gabriel phthalimide process
(b) Its solubility is greater than 2° amines
(c) Can be distinguished by carbylamine test
(d) It is less basic than aromatic amines
Correct answer: (d) It is less basic than aromatic amines
Explanation:
Gabriel Phthalimide Synthesis is used to get primary amines from primary alkyl halides. Since primary amines have a higher number of hydrogen than secondary amines, they show more H-bonding and hence are more soluble than secondary amines. Primary amines can be distinguished from secondary and tertiary amines by reacting with. Primary amine reacts with CHCl3 and alc. KOH to form isocyanide while secondary and tertiary amines do not react.
In aromatic amines, lone pair of nitrogen is involved in resonance and hence less available for donation. So, aromatic amines are less basic than primary amines.