Daily Practice

GCSE Science

30th July 1990

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
Define the term 'homologous series'.
2
Alcohols, Carboxylic Acids and Polymers
Name the small molecule typically released as a by-product during condensation polymerisation.
3
Chemical Analysis
Name the gas that relights a glowing splint.
4
Tests for Ions, Gases and Flame Tests
State the flame test colour for sodium ions.
5
Chromatography 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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