The types of hybrid orbitals of nitrogen in NO2+, NO3– and NH4+ respectively are expected to be
(i) sp, sp3 and sp2
(ii) sp, sp2 and sp3
(iii) sp2, sp and sp3
(iv) sp2, sp3 and sp


NCERT Class XI
Chemistry - Exemplar Problems

Chapter 4. Chemical bonding and molecular structure

Answer :

The answer is  (ii) sp, sp2 and sp3<br /> 

The types of hybrid orbitals of nitrogen in [tex]N O_{2}^{+}, NO_3^-, and \ NH_4^+[/tex] respectively are expected to be [tex](ii) \ sp, \ sp^{2} \ and \ sp^{3}[/tex]

Explanation:

From the given,

[tex]N O_{2}^{+} \ is \ nitrite \ ion[/tex]

[tex]N O_{3}^{-} \ is \ nitrate \ ion[/tex]

[tex]NH_4^+ \ is \ ammonium \ ion[/tex]

Formula for hybridization is:

[tex]\frac{1}{2}(V+H-C+A)[/tex]

Where,

H = Number of "surrounding monovalent atoms"  

C = "Cationic charge"  

V = Number of "valance electrons" in central atom  

A = "Anionic charge"

  1. [tex]N O_{2}^{+}=\left(\frac{1}{2}\right) \times(5+0-1+0)=2=s p[/tex]
  2. [tex]N O_{3}^{-}=\left(\frac{1}{2}\right) \times(5+2-0+1)=3=s p^{2}[/tex]
  3. [tex]N H_{4}^{+}=\left(\frac{1}{2}\right) \times(5+4-1+0)=4=s p^{3}[/tex]

Hence (ii) is correct answer.

Other Questions