What are hybridisation states of each carbon atom in the following compounds?
`CH_2= C=O , CH_3 CH = CH_2 (CH_3 )_2 CO ,CH_2 = CHCN ,C_6 H_6`

Explanation

`(i) overset(sp^2)(CH_2) = overset(sp)C=O " " (ii) overset(sp^3)(CH_3) - overset(sp^2)(CH ) =overset(sp^2)(CH_2)`
`(iii) overset(sp^3)(CH_3) - overset(O )overset(|| sp^2) C- overset(sp^3)(CH_3) " " (iv) overset(sp^2)(CH_2) = overset(sp^2) (CH )- overset(sp)(CH) -= N`
(v)