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The dark blue colour of the solution formed when excess of ammonia is added to a solution of copper (II) sulphate is due to the presence of the ion
Options
(a) [Cu(OH)₄(H₂O)₂]²⁻
(b) [Cu(H₂O)₆]²⁺
(c) [Cu(NH₄)₂(H₂O)₄]⁴⁺
(d) [Cu(NH₃)₄(H₂O₂)]²⁺
Correct Answer:
[Cu(NH₃)₄(H₂O₂)]²⁺
Explanation:
when excess of ammonia is added to a solution of copper (II) sulphate, then the complex compound, [Cu(NH₃)₄(H₂O₂)]SO₄ is formed which causes the formation of deep blue colour.
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Topics: Coordination Compounds
(87)
Subject: Chemistry
(2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- When formaldehyde is polymerised in the presence of dilute H₂SO₄, the compound
- What is the mass of the precipitate formed when 50 mL of 16.9% solution of AgNO₃
- The equilibrium weight of MnSO₄ is M/2 when it changes into
- Crystal field stabilization energy for high spin d⁴ octahedral complex is
- The geometry of Ni(CO)₄ and Ni(PPh₃)₂Cl₂ are
Topics: Coordination Compounds (87)
Subject: Chemistry (2512)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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