Which is not a characteristic reaction of chromium metal or chromium(II)ion? A)Cr(s)+ 2 H⁺(aq)→ Cr²⁺(aq)+ H₂(g) B)4 Cr²⁺(aq)+ O₂(g)+ 4 H⁺(aq)→ 4 Cr³⁺(aq)+ 2 H₂O(l) C)Cr(OH)₂(s)+ 2 H₃O⁺(aq)→ Cr²⁺(aq)+ 4 H₂O(l) D)Cr(OH)₂(s)+ OH^-(aq)→ Cr(OH)₃^-(aq)

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Quizplus · Accepted Answer

The reaction in option D involves the formation of a hydroxide complex of chromium, which is a characteristic reaction of chromium(III) ions, not chromium metal or chromium(II) ions. Options A, B and C involve reactions of chromium metal or chromium(II) ions.

Which Is Not a Characteristic Reaction of Chromium Metal or Chromium(II)ion