Answer : The correct option is, (B) Linear
Explanation :
Formula used :
[tex]\text{Number of electrons}=\frac{1}{2}[V+N-C+A][/tex]
where,
V = number of valence electrons present in central atom
N = number of monovalent atoms bonded to central atom
C = charge of cation
A = charge of anion
Now we have to determine the hybridization of the [tex]BeH_2[/tex] molecules.
[tex]\text{Number of electrons}=\frac{1}{2}\times [2+2]=2[/tex]
The number of electrons is 2 that means the hybridization will be [tex]sp[/tex] and the electronic geometry of the molecule will be linear.
The three-dimensional shape of the molecule with the Lewis structure are shown below.
