QUESTION $5$

What is the relation between the two structures?

$\{\begin{array}{ccc}\text{:}[H,& H,H,H,& H]\end{array}$

$\{\begin{array}{ccc}\text{:}[1,& 1,1,1,& 1]\end{array}$

$H-C---C=C-C-C-H$

I $1$

H

$H,H$

$,H,H,H,H,H$

I,$1,1,1,1$

$H-C-C-C=C-C-H$

$1,1$

$HH$

H

different compounds

the same compound

constitutional isomers

isomers