Daily Practice

GCSE Science

22nd November 1990

5 questions · GCSE · 584 questions in this band

1
Alcohols, Carboxylic Acids and Polymers
State the functional group found in all alcohols.
2
Chemical Analysis
Name the gas that relights a glowing splint.
3
Tests for Ions, Gases and Flame Tests
State the flame test colour for sodium ions.
4
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.
5
Chemistry of the Atmosphere
Explain, in terms of infrared radiation, how greenhouse gases keep the Earth warm.

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 November 1990, including the monthly compilation PDF.