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6 Cards in this Set
- Front
- Back
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Spectroscopy
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Chromophores cause colour in organic compounds.
The colour of organic compounds is due to the colour that is not absorbed |
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Isomerism
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Stereoisomerism is concerned with the position atoms and groups take up in space.
Optically active compounds have a chiral centre. |
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Aromaticity
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Benzene is stable because of electron delocalisation.
Many reactions of benzene are electrophilic substitutions. |
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Alcohols (5 points)
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Made by reduction of aldehydes, ketones and carboxylic acids.
Also made by the hydrolysis of halogenoalkanes and esters. Oxidised to aldehydes, ketones and carboxylic acids. Give esters with acid chlorides and carboxylic acids. |
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Phenol
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Decolourises aqueous bromine, giving a white percipitate.
Gives a purple solution with iron (III) chloride FeCl3 |
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Aldehydes and ketones
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Only aldehydes give a silver mirror with Tollens.
Both give an orange percipitate with 2,4 DNPH. Aldehydes can be further oxidised to carboxylic acids. React with hydrogen cyanide by nucleophilic addition. |
