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Questions and Answers
What is the precipitating agent for Group 3 cations?
What is the precipitating agent for Group 3 cations?
- Sodium acetate
- Sodium hydroxide
- Hydrogen sulfide
- Ammonium sulfide (correct)
Which group of cations is soluble in sodium hydroxide?
Which group of cations is soluble in sodium hydroxide?
- Chromium Group
- Iron/Ferric Group
- Aluminum Group (correct)
- Zinc Group
Which compound results in a white precipitate of ferrous hydroxide when treated with sodium hydroxide?
Which compound results in a white precipitate of ferrous hydroxide when treated with sodium hydroxide?
- Sodium acetate
- Sodium hydroxide
- Hydrogen sulfide
- Ferrous sulfate (correct)
What is the observation when ferrous sulfate is treated with hydrogen sulfide?
What is the observation when ferrous sulfate is treated with hydrogen sulfide?
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What happens to ferrous sulfide upon exposure to moisture?
What happens to ferrous sulfide upon exposure to moisture?
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Ammonium sulfide is the precipitating agent for Group 3 cations.
Ammonium sulfide is the precipitating agent for Group 3 cations.
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Ferrous sulfate is soluble in sodium hydroxide.
Ferrous sulfate is soluble in sodium hydroxide.
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Ferrous hydroxide is insoluble in acids.
Ferrous hydroxide is insoluble in acids.
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Ferrous sulfide forms a partial black precipitate when treated with sodium acetate solution.
Ferrous sulfide forms a partial black precipitate when treated with sodium acetate solution.
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Exposure to moisture causes oxidation of ferrous sulfide.
Exposure to moisture causes oxidation of ferrous sulfide.
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