CH3−CH5=CH−CH2−C≡CH
6 5 4 3 2 1
The state of hybridization of carbons 1,3 and 5 are in the following sequence
(1)sP3,sP2,sP(2)sP2,sP,sP3(3)sP,sP3,sP2(4)sP,sP2,sP3