Question

Dienes are of three types. Cumulated, conjugated and isolated diene. A,B and C are three isomeric pentadienes. They differ in their energies which is plotted with their product of hydrogenation.

Study the graph and answer the following questions.
How many open chain structural isomers are possible for Molecular formula `C_(5)H_(8)` other than these three pentadienes mentioned above.
A. 6
B. 8
C. 9
D. none of these

Answer 1

Correct Answer - A
`{:("[C=C=C-C-C",,C=C-C=C-C,,),(C=C-C-C=C,,C-C=C=C-C,,),(C=underset(C)underset(|)(C)-C=C,,C=C=underset(C)underset(|)(C)-C,,),(C-=C-C-C-C,,C-C-=C-C-C,,C-=C-overset(C)overset(|)(C)-C):}`