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Daily Practice

GCSE Science

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19th February 1993

5 questions · GCSE · 584 questions in this band

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  1. 1
    Alcohols, Carboxylic Acids and Polymers

    State the functional group found in all carboxylic acids.

  2. 2
    Chemical Analysis

    Give one piece of evidence that a solid sample is impure, based on its melting behaviour.

  3. 3
    Tests for Ions, Gases and Flame Tests

    Describe the test, and the positive result, for ammonium ions.

  4. 4
    Chromatography and Instrumental Analysis

    Write the formula for calculating an Rf value.

  5. 5
    Chemistry of the Atmosphere

    Give two human activities that increase the amount of greenhouse gases in the atmosphere.

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