Daily Practice - GCSE Science
Biology, chemistry and physics recall, definition and calculation, drawn from every strand.
17th April 2017
- 1Alkanes, Alkenes and Crude Oil
State the type of reaction that occurs when bromine adds across the double bond of an alkene.
- 2Alcohols, Carboxylic Acids and Polymers
Name the two methods used to produce ethanol industrially.
- 3Chemical Analysis
Name the gas that relights a glowing splint.
- 4Tests for Ions, Gases and Flame Tests
State the flame test colour for sodium ions.
- 5Chromatography and Instrumental Analysis
State one advantage of running known reference substances alongside an unknown sample on the same chromatogram, rather than only comparing to published Rf values.
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