alleryHydrogenation of vegetable oils to make margarine uses catalyst:
APt
BFinely divided Ni (cheaper than Pt; activates H₂)
CAu
DCu
Answer & Solution
Correct answer: B. Finely divided Ni (cheaper than Pt; activates H₂)
**Heterogeneous hydrogenation:** Ni catalyst + H₂ + unsaturated oil
→ saturated (margarine).
Ni adsorbs and splits H₂ molecules into atoms, which react with C=C bonds on Ni surface.
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