Daily Practice

GCSE Science

2nd January 1989

5 questions · GCSE · 584 questions in this band

1
Alkanes, Alkenes and Crude Oil
State the general formula of the alkenes.
2
Alcohols, Carboxylic Acids and Polymers
Explain why carboxylic acids are described as 'weak acids'.
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.

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 January 1989, including the monthly compilation PDF.