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PROPERTIES ALKANES ALKENES ALCOHOLS CARBOXYLIC ACIDS
General
Molecular
CH n 2n+2 CnH2n CnH2n+1OH CH COOH
n 2n+1
Formula Saturated hydrocarbons with C-C A class of organic acids.
bonds and C-H bonds [Single covalent Homologous series. -COOH
bonds] functional group.
Properties High melting and boiling point High melting and boiling Soluble…

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High temperature and
pressure



Substitution Ethene + H2 Ethane
Unsaturated saturated i.e.:
(manufacturing of margarine) Ethanol + O2 from oxidising agent
CH4 + Cl2 CH3Cl + HCl ethanoic acid + H2O
Hydration
I. In this redox rxn, ethanol acts as a
300C reducing agent while acidified
65 atm potassium dichromate…

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Fermentation is a chemical process in which
micro-organisms such as yeast act on carbs.
to produce ethanol and CO2

Starch Glucose Ethanol + CO2

Fermentation can only take place in the
absence of O2. If an alcoholic drink such as
PREPARATION OF ALKENES: wine is left exposed to the air,…

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making of varnishes, deodorants,
perfumes, etc.
Alcoholic drinks


[Oxidation] {test}
Breathalysers test the amount of
alcohol consumed by drivers.
Contains potassium dichromate
(VI). A colour change indicates
presence of alcohol.

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