Welcome to the Quiz!
This quiz contains 9 questions from a mix of 1 subtopics.
In the presence of ammonia, damp red litmus paper turns .
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Which of the following ions does not form a precipitate when reacted with excess aqueous sodium hydroxide?
Mn2+
Cr3+
Fe3+
Fe2+
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Which of the following ions forms an blue precipitate when reacted with aqueous sodium hydroxide?
Cu2+
Fe2+
Fe3+
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What is the product of the reaction between iron(III) ions and ammonia?
Fe(H2O)2(OH)4
Fe(H2O)3(OH)3
Fe(H2O)4(OH)3
Fe(H2O)4(OH)2
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What is the formula of the product formed when aqueous copper ions react with excess aqueous ammonia?
[Cu(NH3)4(H2O)2]2+
Cu(NH3)4(OH)2
[Cu(H2O)6]2+
Cu(H2O)4(OH)2
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What is the colour of the solution formed when excess ammonia is added to copper(II) hydroxide?
pale blue
dark green
light brown
deep blue
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Which of the following ions does NOT form a precipitate when reacted with excess aqueous ammonia?
(Select all that apply).
Fe3+
Mn2+
Cu2+
Cr3+
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What is the colour of the precipitate formed when manganese(II) ions react with hydroxide ions?
green
brown
purple
blue
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Which of the following ions forms a green precipitate when reacted with aqueous sodium hydroxide?
Fe3+
Cu2+
Fe2+
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