Daily Practice · GCSE Science

Daily Practice - GCSE Science

23rd September 1996

5 questions · GCSE · 584 questions in this band

1
Alcohols, Carboxylic Acids and Polymers
State the functional group found in all carboxylic acids.
2
Chemical Analysis
State the difference between a pure substance and a formulation.
3
Tests for Ions, Gases and Flame Tests
A solution gives a cream precipitate when acidified with dilute nitric acid and then treated with silver nitrate solution. Name the halide ion present.
4
Chromatography and Instrumental Analysis
Explain why the baseline is drawn in pencil rather than ink.
5
Chemistry of the Atmosphere
Give two processes that removed carbon dioxide from the early atmosphere.

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