Other contributors have said "What are hydroxyl group with an predominant group?" is the same question as "What is a hydroxyl group?" If you believe that these are not asking the same thing and should be answered differently, click here
No, a hydroxyl group is different than a carbonyl group. A hydroxyl group is an O-H group, while a carbonyl group is a C=O (double bond) group. Perhaps you are thinking of a carboxyl group, which is...
Hydroxyl groups are -OH molecules that form the 'alcohols' in organic chemistry. 'Poly' equates to 'many.' An important polyhydroxyl group is 1, 2-ethanediol (ethylene glycol) C2H4(OH)2which is in...