What is the hybridization state of Si (a) in SiH4 and (b)

Step 1 of 2

Here we have to find the hybridization of Si in  and in .

(a) Hybridization of Si in

In order to know the hybridization, we have to draw its Lewis dot structure.

In the above structure Si is surrounded by four bond pairs, no lone pair is present on the central atom. Thus  must form four hybrid orbitals i.e  hybridization with tetrahedral shape.

Hence the hybridization of  is found to be .