How many alkene on catalytic hydrogenation given isopentane as a product?

How many alkene on catalytic hydrogenation give isopentane as a product?

How many alkenes on catalytic hydrogenation give isopentane as a product (consider only structural isomers) ?

Explain catalytic hydrogenation.

Which of the following alkene on catalytic hydrogenation given cis and trans-isomer ?

Which of the following alkene on catalytic hydrogenation gives cis and trans-isomers?

How many structural cycloalkenes on catalytic hydrogenation gives methyl cyclohexane.