The number of moles of hydrogen that can be added to 1 mole of an oil is the highest in

The number of moles of hydrogen that can be added to 1 mole of an oil is the highest in linseed oil. Linseed oil is a triglyceride with a large amount of fatty acids such as $\mathrm{\alpha }$-linolenic acid (triply unsaturated), monounsaturated oleic acid and doubly unsaturated linoleic acid. Linseed oil has the highest percentage of unsaturation and hence, the highest number of moles of hydrogen can be added to it.