Question

The types of hybrid orbitals of nitrogen in $NO_{2}^{+},NO_{3}^{-}$and $NH_{4}^{+}$respectively are expected to be

• A. $sp,sp^{3}andsp^{2}$
• B. $sp,sp^{2}andsp^{3}$
• C. $sp^{2},spandsp^{3}$
• D. $sp^{2},sp^{3}andsp$

Answer 1

Answer: (B)

$sp,sp^{2}andsp^{3}$

Answer 2

: $x - \frac{1}{2}(VE + MA - CA - C + a)$

Where, VE = NO. of valence electrons on the central atom.

MA = No. of monovalent atoms surrounding the central atom.

C = charge on the cation

a = charge on the anion

for $NO_{2}^{+},X = \frac{1}{2}(5 + 0 - 1) = 2$ (sp hybrid orbitals)

For$NO_{3}^{-},X = \frac{1}{2}(5 + 0 + 1) = 3$ ($sp^{2}$hybrid orbitals)

For $NH_{4}^{+},X ⥂ = \frac{1}{2}(5 + 4 - 1) = 4$ ($Sp^{3}$hybrid orbitals)