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) ?

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

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

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

Acetone oxime on catalytic hydrogenation gives