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Carbohydrates are broadly divided into monosaccharides, oligosaccharides, and polysaccharides. 

a) Write one example of each of monosaccharides and oligosaccharides. 

b) i) Write any one method for the preparation of glucose.

ii) What is peptide linkage?

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a) Monosaccharide – Glucose, Fructose, 

Ribose Oligosaccharide – Sucrose, Maltose, Lactose (anyone) 

b) i) From Sucrose (cane sugar): Sucrose on hydrolysis gives glucose and fructose. 

or 

Hydrolysis of starch by boiling it with dilute H2SO4 at 393 K under pressure. 

ii) Due to peptide linkage an amide farmed between -COOH group and -NH group of amino acids of proteins.

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