Which of the following statements accurately describe the process of hydrogenation of vegetable oils — Hydrogen Chemistry Question

💡 Solution & Explanation

Hydrogenation of oils adds $H_2$ across the $C=C$ double bonds of polyunsaturated oils, solidifying them into fats (like vanaspati). $Ni$, $Pt$, or $Pd$ are used as catalysts at high temperatures. The process actually *prevents* the oils from becoming rancid, a state caused by the prolonged oxidation of those same double bonds in air.