In this unit, we shall discuss the chemistry of three classes of
compounds, namely — alcohols, phenols and ethers Monohydric alcohols may be further classified according to the
hybridisation of the carbon atom to which the hydroxyl group is
attached (i) Compounds containing 
C3
spOH
bond: In this class of alcohols,
the –OH group is attached to an sp
3 hybridised carbon atom of an
alkyl group They are further classified as follows:
Primary, secondary and tertiary alcohols: In these three types of
alcohols, the –OH group is attached to primary, secondary and
tertiary carbon atom, respectively as depicted below:
Allylic alcohols: In these alcohols, the —OH group is attached to
a sp
3 hybridised carbon adjacent to the carbon-carbon double
bond, that is to an allylic carbon