10 Questions
What is the precipitating agent for Group 3 cations?
Ammonium sulfide
Which group of cations is soluble in sodium hydroxide?
Aluminum Group
Which compound results in a white precipitate of ferrous hydroxide when treated with sodium hydroxide?
Ferrous sulfate
What is the observation when ferrous sulfate is treated with hydrogen sulfide?
No precipitate
What happens to ferrous sulfide upon exposure to moisture?
Oxidation occurs
Ammonium sulfide is the precipitating agent for Group 3 cations.
True
Ferrous sulfate is soluble in sodium hydroxide.
False
Ferrous hydroxide is insoluble in acids.
False
Ferrous sulfide forms a partial black precipitate when treated with sodium acetate solution.
True
Exposure to moisture causes oxidation of ferrous sulfide.
True
Test your knowledge of Group 3 cations and their properties with this quiz. Explore the classification of aluminum and iron/ferric groups, as well as the precipitating agents involved. Identify the characteristics of ferrous sulfate and its alternative name, Iron (II) sulfate.
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