How many alkenes, alkynes and alkadienes can be hydrogenated to form Isopentane (Including all structural isomers)

How many alkenes, alkynes and alkadienes can be hydrogenated to form I

1.	How many alkenes, alkynes and alkadienes can be hydrogenated to form Isopentane (Including all structural isomers)
Answer» SOLUTION :`CH_(2)=overset(CH_(3))underset(\|)(C)-CH_(2)-CH_(3)``CH_(3)-overset(CH_(3))overset(\|)(C)=CH-CH_(2)``CH_(3)-overset(CH_(3))overset(\|)(CH)-CH=CH_(2)` ltBrgt `CH_(3)-overset(CH_(3))overset(\|)(CH)-C-=CH``H_(2)C=overset(CH_(3))overset(\|)(C)-C=CH_(2)``CH_(3)-overset(CH_(3))overset(\|)(C)=C=CH_(2)`