How many hybrid orbitals do we use to describe each HOCN no

How many hybrid orbitals do we use to describe each :

HOCN (no formal charges)

Solution

8 hybridized orbitals

tip:

O is sp3-hybridized ---> 4 hybridized orbitals

C is sp-hybridized ---> 2 hybridized orbitals

N is sp-hybridized ---> 2 hybridized orbitals