Daily Practice · GCSE Science

Daily Practice - GCSE Science

Biology, chemistry and physics recall, definition and calculation, drawn from every strand.

16th September 2016

5 questions · GCSE · 584 questions in this band

1
Alcohols, Carboxylic Acids and Polymers
Name the carboxylic acid produced when ethanol is oxidised.
2
Chemical Analysis
Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
3
Tests for Ions, Gases and Flame Tests
Describe the test, and the positive result, for ammonium ions.
4
Chromatography and Instrumental Analysis
Write the formula for calculating an Rf value.
5
Chemistry of the Atmosphere
Name the two gases released in large amounts by volcanic activity that formed most of the Earth's early atmosphere.

You are looking at an earlier sheet. Today's sheet is the one that adds a day.

Your run is kept in this browser only, and there is no account.

Every sheet is deterministic: the same date always regenerates the same five questions. All of September 2016, including the monthly compilation PDF.