Practice question

MCQ

Question

Which complex results in 2 moles of precipitate when treated with excess BaCl₂ per mole of compound?

Options

Choose one · Correct answer highlighted

[Co(NH₃)4Cl₂]2SO₄ Correct [Co(NH₃)6]Cl₃ [Fe(H₂O)6]SO₄ [Ni(NH₃)4]Cl₂

Explanation

[Co(NH₃)4Cl₂]2SO₄ has 2 SO₄₂− counter ions, each forming BaSO₄ with BaCl₂, yielding 2 moles of precipitate.

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