Daily Practice

GCSE Science

22nd July 1988

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
State the type of reaction that occurs when bromine adds across the double bond of an alkene.
2
Alcohols, Carboxylic Acids and Polymers
Name the two methods used to produce ethanol industrially.
3
Chemical Analysis
State the difference between a pure substance and a formulation.
4
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.
5
Chromatography and Instrumental Analysis
Explain why the baseline is drawn in pencil rather than ink.

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