A) disaccharides
B) monosaccharides
C) polysaccharides
D) oligosaccharides
Correct Answer: B
Solution :
Key Idea Those sugars which contain 2, 3, 5, 6 carbon atoms are known as monosaccharides. Hexoses and pentoses have six and five carbon atom respectively so these are monosac- charides. Monosaccharides are the simplest carbohydrates which cannot be hydrolysed into simpler compounds eg, ribose\[{{C}_{5}}{{H}_{10}}{{O}_{5}}\], glucose \[{{C}_{6}}{{H}_{12}}{{O}_{6}}\], etc. Disaccharides give two molecules of monosaccharides on hydrolysis, example sucrose, lactose maltose. All these have molecular formula. Polysaccharides These are polymeric and give a large number of monosaccharide on hydrolysis eg, starch \[{{({{C}_{6}}{{H}_{10}}{{O}_{5}})}_{\pi }}\]. Oligosaccharides These are classified into disaccharides, trisaccharides, tetrasaccharides etc.
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