Considering the state of hybridization of carbon atoms, find out the molecule among the following which is linear.
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CH3 - C ≡ C - CH3
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CH2 = CH - CH2 - C ≡ CH
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CH3 - CH2 - CH2 - CH3
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CH3 - CH = CH - CH3
A.
CH3 - C ≡ C - CH3
CH3 - C ≡ C - CH3 linear, because C2 and C3 are sp hybridised.