Question

The number of sp2 hybrid orbitals on the carbon atom in CO32– is

1

2

3

4

Answer 1

The number of sp2 hybrid orbitals on the carbon atom in CO32– is 3. Because hybrids = combination of 2 different types of orbitals
sp2 = 1/3 s character + 2/3 p character

Answer 2

Answer: 3

Step-by-step explanation: Formula used for calculating the hybrid orbitals:

`CO_3^(2-):`

`:{\text{Number of electrons}} =(1)/(2)[V+N-C+A]`

where, V = number of valence electrons present in central atom i.e. carbon = 4

N = number of monovalent atoms bonded to central atom=0

C = charge of cation = 0

A = charge of anion = -2

`{\text{Number of electrons}} =(1)/(2)[4+0-0+2]=3`

The number of electrons is 3 that means the hybridization will be
`sp^2` and the electronic geometry of the molecule will be trigonal planar which will be formed by three
`sp^2` hybrid orbitals.