Qualitative Analysis of Ions
Chemistry ⇒ Analytical Chemistry
Qualitative Analysis of Ions starts at 11 and continues till grade 12.
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A solution gives a blue precipitate with sodium hydroxide, which dissolves in excess to give a deep blue solution. Which ion is present?
A solution gives a white precipitate with silver nitrate, which dissolves in dilute ammonia. Which halide ion is present?
A solution gives a yellow precipitate with potassium chromate in the presence of lead(II) ions. What is the precipitate?
A white precipitate forms when dilute hydrochloric acid is added to a solution, followed by barium chloride. Which ion is likely present?
A solution gives a blue precipitate with sodium hydroxide, which dissolves in excess to give a deep blue solution. Which ion is present?
A solution gives a brown precipitate with sodium hydroxide, which is insoluble in excess. Which ion is present? (1) Fe2+, (2) Fe3+, (3) Cu2+, (4) Zn2+
A solution gives a white precipitate with barium chloride, which is insoluble in dilute hydrochloric acid. Which ion is present? (1) Sulfate, (2) Carbonate, (3) Nitrate, (4) Chloride
A solution gives a white precipitate with silver nitrate that does not dissolve in ammonia. Which halide ion is present? (1) Chloride, (2) Bromide, (3) Iodide, (4) Fluoride
A solution gives a brown precipitate with sodium hydroxide, which is insoluble in excess. Which ion is present? (1) Fe2+, (2) Fe3+, (3) Cu2+, (4) Zn2+
A solution gives a white precipitate with barium chloride, which is insoluble in dilute hydrochloric acid. Which ion is present? (1) Sulfate, (2) Carbonate, (3) Nitrate, (4) Chloride
A solution gives a white precipitate with silver nitrate that does not dissolve in ammonia. Which halide ion is present? (1) Chloride, (2) Bromide, (3) Iodide, (4) Fluoride
Which cation forms a green precipitate with sodium hydroxide that turns brown on standing? (1) Fe2+, (2) Fe3+, (3) Cu2+, (4) Ca2+
The addition of dilute hydrochloric acid to a solution containing sulfide ions produces a gas with a ________ smell.
The addition of dilute hydrochloric acid to a solution produces a gas that turns limewater milky. The gas is ________.
The addition of dilute sulfuric acid to a solution containing barium ions produces a ________ precipitate.
The confirmatory test for nitrate ions involves the formation of a ________ ring at the interface of two liquids.
True or False: Ammonium ions can be detected by heating with sodium hydroxide and observing the evolution of ammonia gas.
True or False: The addition of potassium ferrocyanide to a solution containing Fe3+ ions produces a Prussian blue precipitate.
True or False: The presence of carbonate ions can interfere with the test for sulfate ions using barium chloride.
True or False: The presence of Fe3+ ions can be confirmed by the formation of a blood-red complex with potassium thiocyanate.
