Though ketones
give ketols (compounds containing a keto and alcohol groups),
the general name aldol condensation still applies to the reactions
of ketones due to their similarity with aldehydes Rationalised 2023-24
242
Chemistry
(ii) Cross aldol condensation:  When aldol condensation is carried
out between two different aldehydes and / or ketones, it is called
cross aldol condensation If both of them contain a-hydrogen
atoms, it gives a mixture of four products This is illustrated
below by aldol reaction of a mixture of ethanal and propanal