carbohydrate is an organic compound with the general formula Cn(H2O)n, that is, consists only of carbon, hydrogen and oxygen, with the last two in the 2:1 atom ratio.
Classification of Carbohydrates,

• Monosaccharides. = it is a simple suger with multiple OH group.Based on number of carbon (3,4,5,6) a monosaccharide is a triose,tetrose.pentose and hexose,


• Disaccharides. = 2 monosaccharide covalently linked,


• Oligosaccharides. = Few monosaccharides covalently linked,


• polysaccharides. = Consists of chain of monosaccharides or disaccharides with covalently linked,