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Questions and Answers
What is the purpose of adding chlorine to the Fe(II) solution?
What is the purpose of adding chlorine to the Fe(II) solution?
- To oxidize Fe(II) to Fe(III) (correct)
- To remove sulfates
- To form a white precipitate
- To reduce Fe(III) to Fe(II)
What is the indication of the presence of Fe 3+ ions in a solution?
What is the indication of the presence of Fe 3+ ions in a solution?
- A red colour
- A yellow colour
- A white precipitate
- An orange-brown precipitate (correct)
What is the outcome of adding Iron II sulphate and concentrated sulphuric acid to a solution containing nitrate ions?
What is the outcome of adding Iron II sulphate and concentrated sulphuric acid to a solution containing nitrate ions?
- A white precipitate is formed
- A yellow precipitate is formed
- A brown ring is formed near the bottom of the test tube (correct)
- No reaction occurs
What is the result of adding ammonia to a solution containing chloride ions?
What is the result of adding ammonia to a solution containing chloride ions?
What is the purpose of boiling a solution containing carbonate ions?
What is the purpose of boiling a solution containing carbonate ions?
What is the indication of the presence of sulfite ions in a solution?
What is the indication of the presence of sulfite ions in a solution?
What is the result of adding concentrated nitric acid to a solution containing phosphate ions?
What is the result of adding concentrated nitric acid to a solution containing phosphate ions?
What is the definition of oxidation?
What is the definition of oxidation?
What is the purpose of adding BaCl₂ to a sulphite solution?
What is the purpose of adding BaCl₂ to a sulphite solution?
What is the definition of a reducing agent?
What is the definition of a reducing agent?
What is the purpose of adding dilute HCl to a sulphite solution?
What is the purpose of adding dilute HCl to a sulphite solution?
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