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In which of the following molecules, al...

In which of the following molecules, all the constituent carbon atoms have the same state of hybridisation-

A

`HC-=C-C-=N`

B

`CH_(3)-C-=C-CH_(2)CH_(3)`

C

`CH_(2)=C=C=CN_(2)`

D

`CH_(2)=CH-CHO`

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The correct Answer is:
A, D
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