Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
24th September 2018
- 1Alcohols, Carboxylic Acids and Polymers
Name the two methods used to produce ethanol industrially.
- 2Chemical Analysis
State the difference between a pure substance and a formulation.
- 3Tests 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.
- 4Chromatography and Instrumental Analysis
Explain why the baseline is drawn in pencil rather than ink.
- 5Chemistry of the Atmosphere
Give two human activities that increase the amount of greenhouse gases in the atmosphere.
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Every sheet is deterministic: the same date always regenerates the same five questions. All of September 2018, including the monthly compilation PDF.