Cambridge O Level Chemistry · Syllabus 5070 · Experimental Techniques and Chemical Analysis
Flame Test
What is Flame Test?
A test in which a sample is held in a hot flame and the colour the flame turns is used to identify the metal ion present. Six colours are required: lithium red, sodium yellow, potassium lilac, calcium orange-red, barium light green and copper(II) blue-green. The colour names are set by the official notes, so answers use those words rather than descriptive alternatives such as crimson, brick red or apple green.
This definition is part of the Experimental Techniques and Chemical Analysis chapter in Cambridge O Level Chemistry.
Reviewed by Academiq Edu Instructor PanelLast reviewed Syllabus 2026-2028