Question

Match List - I with List - II. 
         List - I (Saccharides)     List - II (Glycosidic linkages found) 
         (A) Sucrose                     (I) \( \alpha 1 - 4 \)
         (B) Maltose                    (II) \( \alpha 1 - 4 \) and \( \alpha 1 - 6 \)
         (C) Lactose                     (III) \( \alpha 1 - \beta 2 \)
         (D) Amylopectin            (IV) \( \beta 1 - 4 \)

Choose the correct answer from the options given below:

• A. (A)-(II), (B)-(IV), (C)-(III), (D)-(I)
• B. (A)-(I), (B)-(II), (C)-(III), (D)-(IV)
• C. (A)-(III), (B)-(I), (C)-(IV), (D)-(II)
• D. (A)-(IV), (B)-(III), (C)-(II), (D)-(I)

Hint:

Glycosidic linkages play a critical role in determining the structure and properties of saccharides. Make sure to recall the types of linkages when identifying saccharides.

Answer 1

The Correct Option is B

- Sucrose, a disaccharide composed of glucose and fructose, is linked by an \( \alpha 1-4 \) glycosidic bond, corresponding to (I).
- Maltose, consisting of two glucose units joined by an \( \alpha 1-4 \) bond, can also form an \( \alpha 1-6 \) linkage, aligning with (II). 
- Lactose, a disaccharide formed from glucose and galactose, features an \( \alpha 1-\beta 2 \) glycosidic bond, matching (III). 
- Amylopectin, a branched glucose polymer, contains \( \beta 1-4 \) linkages within its chains, corresponding to (IV). 
Therefore, the correct pairings are (A)-(I), (B)-(II), (C)-(III), and (D)-(IV).