Key term for Edexcel GCSE Chemistry, used in Qualitative Analysis: Tests for Ions.
The region of an infrared spectrum above 1500 cm⁻¹ that contains specific peaks used to identify functional groups.
Diagnostic region appears in Edexcel GCSE Chemistry revision content for Qualitative Analysis, Hydrocarbons and Polymers, especially Qualitative Analysis: Tests for Ions and Mathematical Applications.
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