Monosaccharides and Disaccharides — Prelims Questions

Which of the following statements regarding carbohydrates is INCORRECT?

Which of the following pairs represents epimers?

Which of the following disaccharides contains an $alpha-1,4$ glycosidic bond and is a reducing sugar?

How many chiral carbon atoms are present in the open-chain structure of D-glucose?

Which of the following monosaccharides is a component of both lactose and sucrose?

Which of the following statements correctly describes the cyclic structure of D-glucose?