Comprehension:
Biomolecules
Sugars are the carbohydrates which are sweet in nature and one such example is sucrose. Carbohydrates are classified based on their behavior towards hydrolysis. Carbohydrates can also be classified as reducing or non-reducing sugars based on their behavior towards Fehling's reagent and Tollens' reagent. Monosaccharides can also be classified based on the number of carbon atoms as well as the functional group present in the structure. The two monosaccharides are joined through a special linkage. Carbohydrates are optically active compounds which contain polyhydroxy aldehyde groups or ketones or the compounds which produce such units on hydrolysis.
The carbon atoms involved in the glycosidic linkage present in one of the starch components (water-soluble) are
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → C1-C4
The water-soluble component of starch is amylose, an unbranched chain of α-D-glucose units joined through C1–C4 glycosidic linkages.
NCERT (2026-27 edition):
Starch
