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Organic analysis key terms
Use these key terms for Organic analysis in AQA Chemistry 7405. The page is built from approved learning objectives for this topic and links back to the wider unit, topic hub, and related revision assets.
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key terms
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Topic
Organic analysis
Key terms
test-tube reactions
Experiments conducted in a test-tube to identify the presence of specific functional groups such as alcohols, aldehydes, alkenes, and carboxylic acids.
molecular ion peak
The peak in a mass spectrum that corresponds to the molecular weight of the compound, indicating the presence of the intact molecular ion.
molecular ion peak
The peak in a mass spectrum that corresponds to the molecular ion, representing the molecular weight of the compound.
fragmentation pattern
The unique pattern of smaller ions produced when a molecular ion breaks apart, used to deduce the structure of the original molecule.
fragmentation
The process in mass spectrometry where molecular ions break into smaller ions, providing evidence for structural identification.
molecular ion peak
The peak in a mass spectrum that corresponds to the molecular ion, indicating the molecular weight of the compound.
test-tube reactions
Experiments conducted in a test-tube to identify the presence of specific functional groups in organic compounds such as alcohols, aldehydes, alkenes, and carboxylic acids.
mass spectrometry
An analytical technique used to measure the mass-to-charge ratio of ions, allowing for the identification of molecular ion peaks and fragmentation patterns in organic compounds.
infrared absorption
The process by which a molecule absorbs infrared radiation, leading to vibrations of its bonds, which can be used to identify functional groups.
functional group identification
The method of determining the specific reactive group within a molecule that defines its chemical properties, often using techniques like infrared spectroscopy.
fingerprint region
The unique pattern of absorption peaks in an infrared spectrum that can be used to identify specific organic compounds.
reference spectra
Spectra obtained from known compounds used for comparison to identify functional groups in unknown samples.
Infrared Spectroscopy
A technique used to identify functional groups in molecules by measuring the absorption of infrared radiation.
Molecular Ion Peak
The peak in a mass spectrum that corresponds to the molecular weight of the compound, indicating the presence of the intact molecule.
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