CAIE A-Level Chemistry AS P3.10 Qualitative Analysis Notes and Tests Questions
Practise recording qualitative observations and using chemical tests to identify substances and ions.
- Syllabus
- 2028–2030
- Course
- Chemistry 9701
- Level
- AS
Exam points
- record accurate observations for qualitative chemical tests
- use reagent tests to distinguish compounds and identify ions
- interpret colour, precipitate, gas and other diagnostic observations
CAIE A-Level Chemistry AS P3.10 Qualitative Analysis Notes and Tests Questions question 1
[Maximum number: 1]
Compound T is a white crystalline solid.
When a sample of compound T is mixed with aqueous sodium hydroxide and heated, a gas is produced which turns damp red litmus paper blue.
Further testing of a solution of compound T with aqueous barium chloride produces a dense white precipitate which does not dissolve when dilute hydrochloric acid is added to the mixture.
What is the identity of compound T ?
A
ammonium carbonate
B
ammonium sulfate
C
sodium carbonate
D
sodium sulfate
B
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