Amines

Amines are bases because they have a lone pair of electrons on nitrogen and their nucleophilic nature (they are electron-rich, so they are attracted to electron-deficient species to donate electrons and accept protons.

In Amines, the nitrogen atom bonds with alkyl or aryl groups replacing hydrogen, whereas in amides, the nitrogen atom bonds directly with the carbonyl group (-CO-).

Correct order of basic strength in aqueous medium is

(CH₃)₂NH > CH₃NH₂ > (CH₃)₃N > NH₃

The chapter, Chapter 9, Amines, contains a 6 marks (it has a regular weightage) in the theory paper consisting of 70 marks in CBSE Class 12 Chemistry. This qualifies it to be a significant chapter under the Organic Chemistry section which as a whole obtains the most weightage. Amines discusses topics of nomenclature, classification, structure, preparation, physical and chemical properties, uses and also identification of primary, secondary and tertiary amines and the Diazonium salts.

 ${\left[Co{\left(H_{2}O\right)}_6\right]}^{2+}+N{H}_{3\left(excess\right)}\to \underset{Diamagneticnature}{{\left[Co{\left(N{H}_3\right)}_6\right]}^{3+}+6H_{2}O}$

$C{o}^{3+}\to 3d^{6}4s^0$

$\Rightarrow {t_{2g}}^{6}e{g}^0$  (form of paired electron)

No. of electron in t_2g = 6

Kindly consider the following figure

HOCl produce in the stratospheric cloud, by the hydrolysis reaction of ClONO₂.

$ClON{O}_{2\left(g\right)}+H_2{O}_{\left(g\right)}\to HOC{l}_{\left(g\right)}+HN{O}_{3\left(vap\right)}$

Ceric ammonium nitrate is used to test alcohol while CHCl₃/alc. KOH is used to test 1° amine