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Cu(II) vs. Cu(I)
Cu 2O( s) — brick red i Fehling's solution, an alkaline solution of Cu 2+ with sodium tartrate, reacts with reducing sugars such as glucose to give brick red Cu 2O. Oxidation of Cu(I)! In aqueous solution, Cu(I) is readily oxidized to ... than the copper(I) complex: 2 CuCl( s) ...
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