alleryThe addition of hydrogen to an unsaturated hydrocarbon to form a saturated one uses a catalyst of:
Airon oxide
Bcopper sulphate
Cmanganese dioxide
Dnickel or palladium
Answer & Solution
Correct answer: D. nickel or palladium
Hydrogenation adds H₂ across double bonds using Ni/Pd catalyst (e.g. vegetable oil → vanaspati).
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