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- 1. Multiple Choice
What colour and state is CuCO3 ?
deep blue solution
blue green solid
light blue solid
light blue solution
- 2. Multiple Choice
A pale green solution has ammonia added to it dropwise. At first it forms a precipitate, and then there is a colour change. What is the final product?
[Cu(NH3)4(H2O)2]2+
Al(H2O)3(OH)3
[Fe(NH3)4(H2O)2]2+
Fe(H2O)3(OH)3
- 3. Multiple Choice
Which of the following complexes would undergo an acid base reaction with an acid to form a precipitate?
[Al(OH)4]-
[Al(H2O)6]3+
CuCl42-
Al(H2O)3(OH)3
- 4. Multiple Choice
Which of the following cannot form when ammonia solution is added to heaxaaqua metal complexes?
Cu(H2O)4(OH)2
Fe(H2O)3(OH)3
[Al(OH)4]-
[Cu(NH3)4(H2O)2]2+
- 5. Multiple Choice
Which of the following is formed by a ligand exchange reaction?
[Cu(NH3)4(H2O)2]2+
Cu(H2O)4(OH)2
[CuCl4]2-
[Cu(H2O)6]2+
- 6. Multiple Choice
A metal ion can form complexes that are pale blue, yellow, and deep blue. What is that metal ion?
Fe2+
Al3+
Fe3+
Cu2+
- 7. Multiple Choice
Which of the following can react with sodium carbonate to form a gas?
[Cu(H2O)6]2+
[Fe(H2O)6]3+
Al(H2O)3(OH)3
[Al(OH)4]-
- 8. Multiple Choice
Which of the following solid hydroxides can form when sodium hydroxide is used as a reagent with the hexaaqua metal complex?
Cu(H2O)3(OH)3
[Fe(H2O)4(OH)2]+
Fe(H2O)3(OH)3
[Al(OH)4]-
- 9. Multiple Choice
Which of the following metal complexes has a co-ordination number of 6?
[CuCl4]2-
Fe(OH)3
Al(H2O)3(OH)3
Cu(OH)2
- 10. Multiple Choice
Concentrated hydrochloric acid is added to a mixture of Cu(H2O)4(OH)2 and Fe(H20)3(OH)3. Which of the following complexes cannot form?
Fe(H2O)4(OH)2
[Cu(H2O)6]2+
[CuCl4]2-
[Fe(H2O)5(OH)]2+
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