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This quiz contains 12 questions from a mix of 1 subtopics.
What is the colour of the solution formed when an excess of concentrated hydrochloric acid is added to a solution containing [Cu(H2O)6]2+?
yellow
pale blue
pink
dark blue
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What is the colour of the complex ion formed when excess aqueous ammonia is added to an aqueous solution of copper(II) sulfate?
dark blue
green
pale blue
yellow
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What is the shape of the complex ion [Cu(H2O)6]2+?
octahedral
trigonal planar
square planar
tetrahedral
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A reaction occurs when two aqueous solutions containing ions react together to form an insoluble ionic solid.
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What is the shape of the complex ion [CuCl4]2-?
trigonal planar
tetrahedral
octahedral
square planar
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What is the oxidation state of copper in the complex ion [Cu(NH3)6]2+?
+3
+2
+4
+1
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What is the term for the exchange process that occurs between water and ammonia in complex ions?
Ligand
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What is the colour of the solution formed when the blue precipitate of iron(III) hydroxide dissolves in excess concentrated ammonia?
yellow
green
blue
brown
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What is the colour of the precipitate formed when aqueous ammonia is added to aqueous iron(II) ions?
green
yellow
blue
red
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What is the central metal ion in a haem group?
Fe3+
Fe+
Fe
Fe2+
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What is the term for complexes with multidentate ligands?
complexes
entropies
chelates
monodentates
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What is the main reason for the increased stability of complexes with multidentate ligands?
presence of lone pairs
entropy change of the reaction
size of the ligand
formation of co-ordinate bonds
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