Daily Practice

GCSE Science

5th September 1989

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
Name the catalyst used when an alkene reacts with hydrogen to form an alkane.
2
Alcohols, Carboxylic Acids and Polymers
State what happens to the carbon-to-carbon double bond of an alkene monomer during addition polymerisation.
3
Chemical Analysis
Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
4
Tests for Ions, Gases and Flame Tests
Describe the test, and the positive result, for ammonium ions.
5
Chromatography and Instrumental Analysis
Write the formula for calculating an Rf value.

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