Welcome to the Quiz!
This quiz contains 14 questions from a mix of 1 subtopics.
What colour is the precipitate formed when iron(III) ions react with OH- ions?
green
blue
yellow
brown
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What is the formula of the complex ion formed when Cu(H2O)6]2+ reacts with excess aqueous ammonia?
[Cu(NH3)2(H2O)4]2+
[Cu(NH3)3(H2O)3]2+
[Cu(NH3)4(H2O)2]2+
[Cu(NH3)6]2+
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The reaction between iron(II) ions and OH- ions forms the precipitate iron(II) hydroxide, which is in colour.
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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+?
dark blue
pale blue
pink
yellow
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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?
yellow
pale blue
green
dark blue
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What is the shape of the complex ion [Cu(H2O)6]2+?
square planar
trigonal planar
tetrahedral
octahedral
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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-?
octahedral
square planar
trigonal planar
tetrahedral
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What is the oxidation state of copper in the complex ion [Cu(NH3)6]2+?
+2
+4
+3
+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 central metal ion in a haem group?
Fe2+
Fe
Fe3+
Fe+
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What is the colour of the complex ion formed when an excess of aqueous ammonia is added to a solution containing [Cr(H2O)6]3+?
green
purple
red
yellow
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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?
brown
yellow
green
blue
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What is the colour of the precipitate formed when aqueous ammonia is added to aqueous iron(II) ions?
green
red
blue
yellow
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