Precipitation Reactions
7 past-paper questions on Precipitation Reactions · examined 2020–2023.
20233 questions
A solution of sodium carbonate is added to tap water. A white precipitate forms. Which ion present in the tap water causes the precipitate to form?
Use a measuring cylinder to transfer 2 cm3 of the mixture from (a) into a boiling tube. Add aqueous sodium hydroxide drop by drop until a change is seen. Then add more aqueous sodium hydroxide until a further change is seen. Record your observations.
Add 3 cm depth of dilute nitric acid to the mixture from (e). Then add 1 cm depth of aqueous silver nitrate. Record your observations.
20221 question
State which compound is prepared using a precipitation reaction.
20212 questions
Which compound can be formed by precipitation?
Acidified aqueous silver nitrate is added to aqueous zinc iodide. State the observations made.
20201 question
An aqueous solution contains 0.01 mol of Zn2+(aq) and 0.01 mol of Cu2+(aq). Aqueous sodium hydroxide is added until in excess. After shaking, the mixture is filtered. What remains on the filter paper?
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