Dihydrogen acts as a strong reducing agent towards many metal oxides. However, which of the followin — Hydrogen Chemistry Question

💡 Solution & Explanation

Dihydrogen reduces oxides of metals that are less electropositive than hydrogen or relatively moderately reactive (like $Cu$, $Pb$, $Fe$). It cannot reduce oxides of highly electropositive metals like Aluminium ($Al_2O_3$) due to the extremely high lattice and formation enthalpies of these oxides.