Question

how to alcohol prepared? describe their important reactions​

Answer 1

Alcohols Preparation

A number of general methods for the preparation of aliphatic alcohols are described as follows. Preparation of Alcohols by Hydration of an Alkene The hydrolysis of Alkenes using sulphuric acid (i.e. the direct addition of water). The mechanism of the hydration reaction involves the addition of the Sulphuric Acid across the double bond of the alkene, followed by the displacement of the bisulphate ion by hydroxide ion to form the alcohol.

CH2=CH2 + H2SO4 ==> CH3CH2OSO3H + H20 ==> CH3CH2OH

Ethylene Ethyl Hydrogen Sulphate Ethanol