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Edexcel A-Level Chemistry A2 6 P15 Tests for Ions and Gases Questions

Use observations as evidence: bromine water decolourisation points to C=C, effervescence supports carboxylic acid behaviour and ion-test results fix salt formulae.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
A2

Exam points

  • Link bromine water decolourisation to C=C or alkene functional groups.
  • Use effervescence and test observations to identify carboxylic acids or ions.
  • Name salts and solids from ion evidence, including copper(II) chloride, CuO or CuCrO4.

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