Tell a primary, secondary and tertiary alcohol apart by three different tests, quote every ethanol grade with its percentage, and explain why phenol is a thousand times more acidic than ethanol.
Unit 3, Organic chemistry, carries 17 of the 50 chemistry marks — the heaviest unit in the subject; with eleven chapters sharing them, this one averages a little over one and a half (MEC publishes weights by unit, not by chapter). It is also the busiest junction in organic chemistry: the haloalkanes of Haloalkanes and haloarenes walk in as alcohols, and the carbonyls of Aldehydes and ketones walk out.
MEC scope: Nomenclature, isomerism and classification of monohydric alcohols; preparation and chemical properties. Industrial manufacture: oxo process, hydroboration–oxidation of ethene, fermentation of sugar. Types of ethanol: absolute, power, methylated, rectified spirit, alcoholic beverages. Preparation and properties of phenol.
Three ways it is asked:
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