Question

Question 07

Which of the following species has tetrahedral geometry?

(a) $B{H}_4^{-}$

(b) $N{H}_2^{-}$

(c)$C{O}_3^{2-}$

(d)$H_3{O}^{+}$

Answer 1

Answer: (a).

$B{H}_4^{-}\Rightarrow$ 4 bond pairs + 0 lone pair $\Rightarrow s{p}^3$ hybridised = tetrahedral geometry

$N{H}_2^{-}$ = V - shape

$C{O}_3^{2-}$ = triangular planar

$H_3{O}^{+}$ = pyramidal