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Edexcel A-Level Chemistry AS 3 P15 Tests for Ions and Gases Questions

Name the reagent and condition, state the exact colour, precipitate or gas response and use confirmatory solubility or follow-up tests before assigning the species.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Match gas or water tests to the exact positive colour or relighting observation.
  • Identify ions from precipitate colour, acid response and ammonia solubility evidence.
  • Select functional-group tests such as PCl₅ or acidified AgNO₃ and state the result.

Edexcel A-Level Chemistry AS 3 P15 Tests for Ions and Gases Questions question 1

[Maximum number: 6]

The use of ammonium carbonate in smelling salts is due to the formation of ammonia which counters the effects that cause fainting. When ammonium carbonate is heated gently, it decomposes to form ammonia, water and carbon dioxide.

Complete the table, giving a chemical test, not involving indicators, and its result for each of the products of the decomposition of ammonium carbonate.

Table for Question Edexcel A-Level Chemistry AS 3 P15 Tests for Ions and Gases Questions question 1 — Edexcel A-Level Chemistry AS
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