Daily Practice

GCSE Science

13th May 1989

5 questions · GCSE · 584 questions in this band

1
Organic Chemistry
Name the two industrial methods of cracking.
2
Alkanes, Alkenes and Crude Oil
State the general formula of the alkenes.
3
Alcohols, Carboxylic Acids and Polymers
Explain why carboxylic acids are described as 'weak acids'.
4
Chemical Analysis
Give one piece of evidence that a solid sample is impure, based on its melting behaviour.
5
Tests for Ions, Gases and Flame Tests
Describe the test, and the positive result, for ammonium ions.

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