$CH_3 - CH_5 = CH - CH_2 - C \equiv CH$
6 5 4 3 2 1
The state of hybridization of carbons 1,3 and 5 are in the following sequence
$\begin {array} {1 1} (1)\;sP^3,sP^2,sP & \quad (2)\;sP^2,sP,sP^3 \\ (3)\;sP,sP^3,sP_2 & \quad (4)\;sP,sP^2,sP^3 \end {array}$
