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 green precipitate with sodium hydroxide, which turns brown on standing. Which cation is likely present?
A solution gives a reddish-brown precipitate with sodium hydroxide. Which cation is present?
A solution gives a white precipitate with barium chloride, which dissolves in dilute hydrochloric acid. Which anion is present?
A student adds dilute acid to a salt and observes a rotten egg smell. Which ion is present?
A student adds dilute hydrochloric acid to a solid and observes effervescence. The gas produced turns limewater milky. Which ion is present?
A student adds dilute nitric acid to a solution, followed by silver nitrate, and observes a yellow precipitate. Which halide ion is present?
Describe the confirmatory test for the presence of nitrate ions in a solution.
Describe the procedure to test for the presence of chloride ions in a solution.
Describe the steps to distinguish between carbonate and sulfate ions in a solution.
Explain the difference between qualitative and quantitative analysis in chemistry.
Explain why ammonium ions do not give a precipitate with sodium hydroxide but release a gas on warming.
Explain why the addition of dilute hydrochloric acid is used before testing for halide ions with silver nitrate.
Explain why the addition of excess ammonia dissolves the precipitate formed with zinc ions and sodium hydroxide.
The addition of dilute hydrochloric acid to a solution produces a white precipitate that dissolves in hot water. Which ion is likely present?
