Which of the following molecules represents the order of hybridisation `sp^(2),sp^(3),sp from left to right atoms ?

Options

A. `CH_(2)=CH-CH=CH_(2)`
B. `CH_(2)=CH-C-=CH`
C. `CH-=C-C-=CH`
D. `CH_(3)-CH=CH-CH_(3)`

Answer

B

Explanation

Key Idea While judging the hybridisation in the given type of organic molecules always look for the number of `sigma` and `pi` bonds formed by C-atom involved.
The hybridisation of the given molecules are.
`(i) overset(sp^(2))(CH_(2))=overset(sp^(2))(CH)-overset(sp^(2))(CH)=overset(sp^(2))(CH_(2))`
`(ii) overset(sp^(2))(CH_(2))=overset(sp^(2))(CH)-overset(sp)(C )-=overset(sp)(CH)`
`(iii) overset(sp)(CH)-=overset(sp)C-=overset(sp)(CH)`
`(iv) overset(sp^(3))(CH_(3))-overset(sp^(2))(CH)=overset(sp^(2))(CH)-overset(sp^(3))(CH_(3))`
Therefore, the correct option is (b).