Daily Practice · GCSE Science

Daily Practice - GCSE Science

25th June 1998

5 questions · GCSE · 584 questions in this band

1
Tests for Ions, Gases and Flame Tests
Describe the test, and the positive result, for ammonium ions.
2
Chromatography and Instrumental Analysis
Write the formula for calculating an Rf value.
3
Chemistry of the Atmosphere
State the approximate percentage of nitrogen in today's atmosphere.
4
The Atmosphere: Evolution and Greenhouse Gases
State two long-term stores of carbon that removed carbon dioxide from the early atmosphere.
5
Climate Change and Atmospheric Pollutants
Explain why carbon monoxide is dangerous even though it has no smell.

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.

Any date always gives the same five questions, so a sheet can be set again or shared. All of June 1998, including the monthly compilation PDF.