In which of the following species only one type of hybridisation is present ?

Options

A. `CH_3 -CH_2 - CH = CH_2`
B. `CH_3 - CH = CH - CH_2`
C. `CH_2=CH-CH=CH_2`
D. `CH_3-CH=CH-CH_(2)^(-)`

Answer

C

Explanation

(a) `underset(sp^(3))(CH_3)-underset(sp^(3))(CH_2)-underset(sp^(2))(CH_2)=underset(sp^(2))(CH_2)`
(b) `underset(sp^(3))(CH_3)-underset(sp^(2))(CH)-underset(sp^(2))(CH)=underset(sp^(2))(CH_2^+)`
(c) `underset(sp^(2))(CH_2)-underset(sp^(2))(CH)-underset(sp^(2))(CH)=underset(sp^(2))(CH_2)`
(d) `underset(sp^(3))(CH_3)-underset(sp^(2))(CH)-underset(sp^(2))(CH)=underset(sp^(2))(CH_2^-)`