Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
19th August 2026
- 1Organic Chemistry
State two products, other than water, that can be formed during the incomplete combustion of a hydrocarbon.
- 2Alkanes, Alkenes and Crude Oil
State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 3Alcohols, Carboxylic Acids and Polymers
Name the two methods used to produce ethanol industrially.
- 4Chemical Analysis
State the reagent added, and the result, that shows a white solid contains sulfate ions.
- 5Tests for Ions, Gases and Flame Tests
Explain how the sodium hydroxide test distinguishes aluminium ions from calcium ions, given that both give a white precipitate.
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