What are the of carbohydrates?

Aug 26, 2022, 16:45 IST

Types of Carbohydrates

(i) Monosaccharides: The simple carbohydrates which cannot be further hydrolysed to simpler carbohydrates, e.g. glucose and fructose.

(ii) Oligosaccharides: The carbohydrates which on hydrolysis give two to nine units of monosaccharides.

(a) Disaccharides: It gives two units of monosaccharides on hydrolysis, e.g. sucrose and maltose.

(b) Trisaccharides: It gives three units of monosaccharides on hydrolysis, e.g. raffinose (C₁₈H₃₂O₁₆).

(c) Tetrasaccharides: It gives four units of monosaccharides on hydrolysis, e.g. stachyose (C₂₄H₄₂O₂₁).

(iii) Polysaccharides: These are polymeric molecules, which can be hydrolysed to give large number of monosaccharide units, e.g. (C₆H₁₀O₅)_n. Cellulose is a polymer containing approximately 2000–3000 glucose units per molecule.

Physics Wallah Chemistry Doubts page consist of more questions for reference. 

In general, monosaccharides and oligosaccharides are crystalline solids, soluble in water and sweet in test. These are collectively known as sugars. The polysaccharides on the other hand are amorphous, insoluble in water and tasteless and are known as non–sugars.

What are the of carbohydrates? pdf