Key term for Edexcel GCSE Chemistry, used in Qualitative Analysis: Tests for Ions.
An alkaline reagent (NaOH) used to identify metal cations by forming characteristic insoluble metal hydroxide precipitates.
Sodium hydroxide solution appears in Edexcel GCSE Chemistry revision content for Qualitative Analysis, Hydrocarbons and Polymers, especially Qualitative Analysis: Tests for Ions and Unknown Salt Identification.
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